Prove identity : (2 cos 2x)/(cot x – tan x) = sin 2x

Step-by-step explanation:

(2 cos(2x)) / (cot x – tan x)

Multiply top and bottom by sin x cos x:

(2 cos(2x) sin x cos x) / (cos² x – sin² x)

Use double angle formula:

(2 cos(2x) sin x cos x) / (cos(2x))

2 sin x cos x

Use double angle formula:

sin(2x)

answer: answer is c!

ok i got to organize the

3/15 and 12/55

3*

aha

3*4 equals 12 but not

a: no

b:

8/24 12/35

no

gautie

it's c

5/18 = 25/90

5*5=25

18*5 = 90

hope that you!

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step-by-step explanation:

i'm sorry i don't know

step-by-step explanation: