Show that : `1/(tan 3 A + tan A) - 1/(cot 3A + cot A) = cot 4A`

(1)/(tan 3 A - tan A)- (1)/(cot 3 A - cot A)=

Prove that (1)/(tan 3A - tan A) - (1)/(cot 3A - cot A) = cot 2A .

Show that: (1)/(tan3A-tan A)-(1)/(cot3A-cot A)=cot2A

(1)/(tan3A+tan A)-(1)/(cot3A+cot A)=cot4A

Prove that (1)/(tan3A-tan a)-(1)/(cot3A-cot A)=cot2A

Show that : (cot A+tan B)/(cot B+tan A)=cot A tan B

(tan A) / (1-cot A) + (cot A) / (1-tan A) = 1 + tan A + cot A = 1 + sec A cos ecA

What is ( tan x + tan y ) ( 1 - cot x cot y ) + ( cot x + cot y ) ( 1- tan x tan y ) equal to ?

Prove that :(1+cot A+tan A)(sin A cos A)=sin A tan A cot A cos A

If A+B+C= (pi)/(2) prove that:m (i) "tan"A tan B +"tan"B tan C +"tan" C tan A =1 (ii) cot A +cot B+ cot C= cot A cot B cot C.