Question

Simplify the expression: cot x sin x - sin quantity pi divided by two minus x. + cos x

Answer 1

why dont you use wolfram or tiger-algebra

Answer 2

so easy too :P im not telling you you have to just a choice of action

Answer 3

I could, but this helps teach me more.

Answer 4

really need the equation tool for this
almost impossible to read in english

Answer 5

cot(x)sin(x)−sin((π2)−x)+cos(x)

Answer 6

ok

Answer 7

amazing how a mod agreed with me :3

Answer 8

cot eks sin eks equals cos eks divided by sin eks times sin eks equals cos eks

sin quantity pi divided by two minus eks equals cos eks

so the expression boils down to

cos eks minus cos eks plus cos eks

Answer 9

Oh, and the answer choices are:
cos(x)
sin(x)
2sin(x)
2cos(x)

Answer 10

sin(x) + 2 cos(x)

Answer 11

https://www.wolframalpha.com/input/?i=cot%28x%29sin%28x%29%E2%88%92sin%28%28%CF%802%29%E2%88%92x%29%2Bcos%28x%29

Answer 12

Yeah, @ParthKohli I got that part, but I can't figure out how to get one of the answer choices from it.

Answer 13

Or at all, really....

Answer 14

@ali2x2 That's not one of the possible answers.

Answer 15

first off
\[\sin(\frac{\pi}{2}-x)=\cos(x)\]

Answer 16

sorry that i couldnt help mabey @satellite73 will have better luck, MUCH BETTER LUCK

Answer 17

maybe

Answer 18

@satellite73 That's an identity?

Answer 19

@satellite73 ?

Answer 20

Oh, whoops, @ParthKohli you solved it but it was confusing to look at, the final answer is cos(x).