Question

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

Answer 1

the first one makes no sense

Answer 2

actually the whole question makes no sense
there is no mathematical operation known as "simplifying"
you can rewrite it if you like, but it will be no "simpler"

Answer 3

the last step because if you expand the denominator you can simplify it using a well known trig identity

Answer 4

i would love to know how it will be "simplified" when you do what @welshfella suggests

Answer 5

I never seen a question like this before but I was thinking the answer is C. (sinx(1 - sinx))/((1 + sinx)(1 - sinx))

Answer 6

C is the only answer that is the same as the original expression, so go with that
love to know who wrote this one

Answer 7

no satellite is correct - my methos would not make it more simple

Answer 8

But if you had to choose an answer what would you pick?

Answer 9

C would give you

sin x - sin^2 x
-----------
cos^2 x

Answer 10

as satellite said go with C

Answer 11

ok thank you both for your help and time

Answer 12

I just got it right it is C.

Answer 13

yw