Mathematics · Oct / Nov 2021 · Paper 21 · Question 20
0580
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The question as text
Solve ( ) cosx 3 2 5 + = for ° ° x 0 360 G G . [3]
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109.4 to 109.5 and 250.5 to 250.6 [3]
B2 for one correct angle
or M1 for cos x = 5 3 − 2 or better If 0 scored
SC1 for two angles that sum to 360
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