The curve is given by and for

MATHEMATICS · Subjective · A Level · Mathematics · Differentiation · Differentiation

Problem

The curve is given by x(t)=sin⁡tx(t)=\sin t and y(t)=cos⁡ty(t)=\cos t for 0<t<2π0<t<2\pi. Identify all intervals of tt on which yy is decreasing as xx increases.

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