Question

prove that 2cos²0- 1/sin0coso= cot 0-tan0​

Answer 1

Answer:

Step-by-step explanation:I am taking theta a X because I don't have theta...

We start by solving RHS first

RHS -

● Cot X - Tan X

● Cos X/Sin X - Sin X/Cos X

Taking LCM , we get

● Cos^2 X - Sin^2 X/ Sin X Cos X

Substituting value of Sin^2 X from identity ... Sin^2 X = 1 - Cos^2 X

We get,

●Cos^2 X - (1 + Cos^2 X)/ Sin X Cos X

●2Cos^2 X - 1 / Sin X Cos X