Mathematics · May / June 2022 · Paper 22 · Question 17
0580
As printed in the paper
Show the answer and mark scheme
17(a)[2]
Correct sketch to go through (0, 0), (180, 0) and (360, 0) [2]
B1 for correct sine curve shape through the origin
17(b)[3]
199.5 or 199.47… and 340.5 or 340.52 to 340.53… [3]
B2 for one correct 1 −
or M1 for sin x = oe 3 If 0 scored
SC1 for two reflex angles with sum of 540 or two non-reflex angles with sum of 180
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