Solved: In Exercises 510, tell whether or not 1x2 = sin x
Chapter 5, Problem 5.1.1.125(choose chapter or problem)
In Exercises 5–10, tell whether or not f(x) = sin x is an identity.
\(f(x)=\left(\sin ^{3} x\right)\left(1+\cot ^{2} x\right)\)
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