Community mocks

TMUAmockz Set 1 Paper 2 · Q11

Paper 2TrigonometrySequences & series

The first term of an infinite geometric progression is cos⁡x\cos x and the common ratio is also cos⁡x\cos x. For how many values of xx in the interval 0≤x<2π0\le x<2\pi does the sum to infinity equal sin⁡x\sin x?

A00
B22
C33
D44
E66
F11

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