Calculus

Which of the following is the best linear approximation for
f(x)=cos(x) near x= π/2 ?

a) y= x - π/2
b) y= -x + π/2
c) y= -x + π/2 + 1
d) y= x - π/2 +1

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  1. stop reposting. Sometimes no one is online when you post, and repeating these posts just wastes our time sifting through duplicates.

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