Let be defined by

MATHEMATICS · Single correct · A Level · Mathematics · Algebra and Functions · Algebra and Functions

Problem

Let f:R→Sf:\mathbb{R}\to S be defined by f(x)=sin⁡xf(x)=\sin x. For which of the following sets SS is ff surjective? (a) (−1,1)(-1,1) (b) [−1,1][-1,1] (c) (0,1)(0,1) (d) [−π,π][-\pi,\pi]

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