Question 52 Answer and Explanation _ACT 2009 Asia Form 62D Math Section

Question 52 Answer and Explanation _ACT 2009 Asia Form 62D Math Section

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52. Whenever cos x ≠ 0 and sin x ≠ 0, the expression sec² x + tan² x is equivalent to:

F. 1 + sin 2x

G. 1 + cos 2x

H. $\frac{1+{cos}^{2}x}{{cos}^{2}x}$

J. $\frac{2+{cos}^{2}x}{{cos}^{2}x}$

K. $\frac{1+{sin}^{2}x}{{cos}^{2}x}$

Answer and Explanation

Your Answer is

Correct Answer is K

Explanation