Question 54 Answer and Explanation _ACT April 2017 Form 74F Math Section

Question 54 Answer and Explanation _ACT April 2017 Form 74F Math Section

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54. One of the following graphs in the standard (x, y) coordinate plane is the graph of $y\,=\,{sin}^{2}x\,+\,{cos}^{2}x$ over the domain $-\dfrac{\pi }{2}\leq x\leq \dfrac{\pi }{2}$ . Which one ?

F.

G.

H.

J.

K.

Answer and Explanation

Your Answer is

Correct Answer is H

Explanation

sin² x + cos² x = 1, constant