Pre Cal
posted by Angela .
which of the expressions are identical?
a) cos^2x
b)(cosx)^2
c) cos (x^2)
d) (sinx)^1
E) sin^1 x
f) sin (x^1)
g) 1/ sin x

a , b
it would also be 1 sin^2 x
but that is not listed :)
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