Question

cot thetha- cot 3 thetha is equal to???​

Answer 1

Answer:

Step-by-step explanation:

let theta be x,easy for me to write

cot 3 x=(3 cot x-cot^3 x)/(1- 3cot^2 x)

=cot x-cot 3 x

=cot x-(3 cot x - cot^3 x)/(1- 3cot^2 x)

----take lcm

=(cot x-3 cot^3x -3cot x +cot^3x)/(1-3cot^2x)

= (-2 cotx- 2 cot^3x)/(1-3cot^2x)

Answer 2

Cot theta - Cot 3 theta= -Cot 2 theta!!!!