Mr Man's links to Pure vids:
Textbook errors - Y1 Pure:
https://docs.google.com/document/d/1RtvYyMvLvfX7pWzHYhX-BZqOpZLtjyYr/edit#bookmark=id.gjdgxs
updated July 2022 for third printing
Check your ISBN:
9781 292 20826 8 is the OLD uncorrected version 1
9781 292 18339 8 is the NEW (not very corrected) version 2
You can also tell version 2 as it has the number 1 at the bottom of the spine
Exercise 2F, question 1j, page 30
The error in the answers has been corrected online and in recent reprintings, the root and minimum point both have x = -0.2
Mixed Exercise 2, question 2b, page 35
Worked solutions have a couple of tiny errors to look out for, a missing minus sign and an extra solution. The book is correct.
Exercise 3C, question 5, page 45
Only in the online teacher book - if you click on the question to expand, it takes you to 3B question 5 instead. Nothing you can do about this.
Chapter 3, Example 11, page 50
The first line of the solution should say 6/x > 2 rather than > x, in order to match the question. This has been fixed in recent printings and online.
Exercise 3F, question 1b, page 52
This does not make sense, as you would need both equations in the form y= before writing the inequality. You could change it to L1 > L2 but that is not a proper inequality. Instead it should read “Hence write down the solution set for when L1 is above L2”
Printed and online books have been changed to say - 3/2 x + 3 > x - 5
The worked solution is also wrong in this respect.
Exercise 3G, question 2, page 55
Book and online are correct, but the worked solutions have the line x > –1 as dotted rather than solid.
Exercise 4B, question 1i, page 65
Book and online are correct, but worked solutions incorrect, the left-most root should be -5 not -3
Exercise 4D, question 1c, page 70
The book answer has an incorrect cubic graph. This is correct in worked solutions, and has been fixed in recent printings and online.
Exercise 4E, question 1e, page 74
For graph ii, OK in book and online, but mistake in worked solutions, should be positive not negative cube root.
Exercise 4E, question 1f, page 74
For graph ii, OK in book and online, but mistake in worked solutions, should be (3,0) not (cube root of 2, 0).
Mixed Exercise 4, question 5, page 82
The book question and answer has 4 parts, but the worked solutions have 5 parts - ignore the last one.
Review Exercise 1, question 24, page 87
Only the worked solutions are wrong, the top picture has y-intercept 11 not 14.
Exercise 5E, question 8, page 97
Only the worked solutions are wrong, they insert an extra -½ in the final line.
Exercise 5G, question 6, page 102
The worked solutions are riddled with errors, parts c and d name the wrong lines, part d misses out coordinates and uses a long-winded method.
Mixed Exercise 5, question 18, page 110
The graph in the question is correct, it has a gradient of exactly 10.
Old versions of the book says the gradient is 10.5 which is wrong, as is the equation.
The equation should be C = 10 P - 9000. This has been corrected in recent printings and online.
The worked solutions are even worse.
Exercise 7C, question 7c, page 145
Some old books have an answer of ½ instead of ⅓ but this has been corrected in the printed book and online everywhere.
Mixed Exercise 7, question 23, page 155
The correct answer is 3 as the working in the back forgets to square root over the subtraction. This has been fixed in recent printings and online, but the worked solutions are wrong.
Exercise 8C, question 2b, page 164
Error in the worked solutions, it should be -80x3 rather than x2
Exercise 8D, question 4, page 166
Old versions of the book say 2 solutions, newer versions and online versions say 3 solutions which is correct
Exercise 9E, question 1h, page 190
The book has 2 answers, but angle z (at vertex B) cannot be 61.3 degrees since it is opposite the shortest side AC = 4.8 cm and angle A is smaller at 45 degrees. This has been fixed in recent printings and online.
The worked solutions are also incorrect as they work out the wrong value for y first.
Exercise 9F, questions 3 and 4, page 194
The original printing of the book has interval -90 to 270 but this has been corrected in recent printings and online to -180 to 180
Chapter 10, example 8, page 218
This has changed from the original printed book and now has an angle of 2x+60 instead of x+60
Exercise 10E, question 2e, page 218
In the book, the equation is in x but the interval is given in θ. However the new printings and online book have replaced part e and included a new part f.
Other changes to this chapter: Exercise 10E Challenge is now question 8. Mixed Exercise 10 has an extra question 21.
Mixed Exercise 10, question 14, page 223
The answer in the back includes 0 and 360 degrees but these are not in the interval given in the question as 0 < θ < 360. This has been fixed in recent printings and online.
Review Exercise 2, question 16b, page 227
Only the worked solutions have an error, one +24 has changed into a -24.
Review Exercise 2, question 26b, page 228
The answer should be 101 degrees, as bearings are not written as decimals.
Exercise 11C, question 9, page 241
There are 2 solutions, as arcsin 3/5 can be acute or obtuse, and the positive angle must be anticlockwise from the positive x axis. The back of the book disagrees, and has (8,6) and (8,-6). The worked solutions correctly have (-8,6) and (8,6).
Exercise 11D, question 5, page 244
There are 3 possible positions. As well as (7,9) and (9,3) there is also (-1, 1).
This has been added in recent printings and online, but not in the worked solutions.
Chapter 12, page 270
The bullet points are inconsistent. The intervals are given as [a, b] but the inequalities as a < x < b.
The online books have added an extra fact box, saying that strictly increasing is when f’(x) > 0 but in exams you can use either > or > and get the marks.
Exercise 12H, question 2, page 272
The Pure book 1 shouldn’t be referencing Applied book 2. Instead of Year 2 Section 6.2 the green box should say Year 1 Section 11.2 page 185.
Chapter 13, page 289 passim
The book uses the word “polynomial” but then examples and questions are not polynomials as they contain negative and non-integer powers of x.
The bullet point should say “When integrating multiples of powers of x…”
Exercise 13B, question 3b, page 291
The worked solution does not match the question in the book. The answers in the book and online are correct.
Exercise 13F, question 3, page 302
The graph has -11x but all equations have +11x. The equations are correct, and the graph has been fixed in recent printings and online.
Exercise 14B, question 3a, page 316
The question has now been changed in recent printings and online to y = ex + 1, making all the answers correct.
Exercise 14B, question 6b, page 316
Only the worked solutions are wrong, they omit the final x in the power.
Chapter 14, Example 5c, page 317
The book asks for dP/dt = kP but then gives it as a multiple of e-0.006t
Instead we write dP/dt = -0.006 P, and hence k = -0.006
This is a weird way of doing things, but has been fixed in recent printings and online.
Exercise 14C, question 1c, page 318
The graph in the book appears to have an asymptote well above the t axis.
It should get much closer to the axis in a sketch.
Exercise 14G, page 327
The new versions of this exercise are now different to the original book.
14G has two extra questions, 9 and 10.
Chapter 14, Example 19, page 329
This question in the book has a misprint. Part (b) should say log P against log R. The online versions are correct, but recent reprints are still wrong.
Exercises 14H, page 331
The online version of this exercise is now different to the book.
14H has the dodgy question 7 removed, and 8 and 9 renumbered as 7 and 8.
If you are using the book, miss out question 7.
Questions 3, 4, 5, 6 all ask the student to draw a graph. If the equation y=mx+c is used instead, a different value will be obtained for the intercept, and hence for the initial constant. Allow wide tolerances in the students’ answers.
Mixed Exercise 14, question 12, page 335
This question in the book is fatally flawed. The reprints and online versions are correct.
It should say V = a Sb, and log V = log a + b log S.
The worked solutions have not been corrected.
Review Exercise 3, question 8, page 338
The question does not match the answer or the worked solutions. Since the initial positions and velocities are in metres, the finish line should be at 10i metres, not kilometres.