" 27.सिद्ध Do that "cot A-tan A=2cot2A

tan A-cot A=-2cot2A

tan A + cot 2A=

Prove that tan A - cot A =-2 cot2A

If A is not an integral multiple of (pi)/(2) , prove that (i) tan A + cot A= 2 cosec 2 A (ii) cot A - tan A = 2cot 2A

If 2A is not an integral multiple of pi , then show that i) cot A+tan A=2"cosec " 2A ii) cot A-tan A=2 cot2A and deduce the values of tan52 1^(@)/2 and tan37 1^(@)/2

Prove that cot theta-tan theta=2cot 2 theta .

Prove that cot theta-tan theta=2cot 2 theta .

Prove that : cot theta-tan theta=2cot2 theta

Prove that cot theta-tan theta=2cot 2 theta .

cot x-2cot2x=tan x