Which of the following would be an acceptable first step in simplifying the expression (sinx)/(1 + sinx) ?

A. 1/(cscx + sinx)
B. sinx + 1
C. (sinx(1 - sinx))/((1 + sinx)(1 - sinx))

Question

Which of the following would be an acceptable first step in simplifying the expression (sinx)/(1 + sinx) ?

A.	1/(cscx + sinx)
B.	sinx + 1
C.	(sinx(1 - sinx))/((1 + sinx)(1 - sinx))

anonymous · Answer

Is it C?

anonymous · Answer

@zzr0ck3r @terenzreignz

anonymous · Answer

@Hero @radar @bahrom7893 @thomaster

hero · Answer

Yes, C should be correct.

hero · Answer

The other choices don't really make much sense. They don't represent "first steps"

hero · Answer

B is definitely not a proper first step because you cannot split the denominator in that manner. 

$$\frac{\sin(x)}{1 + \sin(x)} \ne \frac{\sin(x)}{1} + \frac{\sin(x)}{\sin(x)}$$