Simplify the expression: sin x cot x + cos x tan x.
Show answer & explanation
Correct answer: D
Explanation
sin x cot x + cos x tan x
According to the formula:
cot x = cos x / sin x
tan x = sin x / cos x
sin x cot x
= sin x × (cos x / sin x)
= cos x
cos x tan x
= cos x × (sin x / cos x)
= sin x
cos x + sin x