Question

cosx. cosx = cos ^2 x
Why Not cos^2 x^2​

Answer 1

Answer:

This is not the same as cos(x2). No. cosx2=cos(x2)=cos(x×x) while cos2(x)=cos(x)×cos(x)=(cos(x))2

Step-by-step explanation:

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Answer 2

Answer:

The reason is cosx is not cos multiplied with x, it is a value of what cos x will be and that value is squared. There fore it is cos^2x and not cosx^2x^2.