what is the function that forms an equivalent graph to y=cos(x)

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1 Answer

y=sin(π/2-x) and y=sin(π/2+x) are equivalent to y=cos(x).

Also, y=2cos²(x/2)-1 and y=1-2sin²(x/2), and many others.

by Top Rated User (1.1m points)

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