The graph of the function is:

MATHEMATICS · Single correct · CBSE · Mathematics · Trigonometric Functions · Trigonometric Functions

Problem

The graph of the function y=cos⁡xcos⁡(x+2)−cos⁡2(x+1)y=\cos x\cos(x+2)-\cos^2(x+1) is: (a) A straight line passing through (0,−sin⁡21)(0,-\sin^2 1) with slope 22 (b) A straight line passing through (0,0)(0,0) (c) A parabola with vertex (1,−sin⁡21)(1,-\sin^2 1) (d) A straight line passing through (π2,−sin⁡21)\left(\frac{\pi}{2},-\sin^2 1\right) and parallel to the xx-axis

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