Question 56 Answer and Explanation _ACT April 2013 Form 71G Math Section

Question 56 Answer and Explanation _ACT April 2013 Form 71G Math Section

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56. For all x such that tan x ≠ 0, the expression $\frac{{sec}^{2}x\,\cdot\,sin\,x}{tan\,x}$ is equivalent to which of the following?

(Note: sec x = $\frac{1}{cos\,x}$ ; tan x = $\frac{sin\,x}{cos\,x}$ )

F. 1

G. cos x

H. ${cos}^{3}x$

J. sec x

K. $sec\,x\,\cdot\,{tan}^{2}x$

Answer and Explanation

Your Answer is

Correct Answer is J

Explanation