Prove the Identity sec2 x cot x cot x tan x Note that each

Prove the Identity. sec^2 x cot x - cot x - tan x Note that each Statement must be based on a Rule chosen from the Rule menu. To question mark.

Solution

You need to show the options for the rule

sec^2xcotx - cotx = tanx

LHS : cotx( sec^2x -1 )

Use the identity : 1+ tan^2x = sec^2x

So, LHS : cotx ( tan^2x)

Now Use the formula : tanx = 1/cotx

So, LHS : tan^2x/tanx

tanx

RHS