Official papers

Official 2021 Paper 1 · Q14

Paper 1TrigonometryAlgebra

This question uses radians.

Find the number of distinct values of xx that satisfy the equation

(x+1)(3−x)=2(1−cos⁡(πx))(x+1)(3-x)=2(1-\cos(\pi x))
A22
B33
C44
D55
E66
F77

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