सिद्ध कीजिए कि
` cot A - cot 2A = "cosec" 2A`

tan A + cot A = 2 cosec 2A

cosec A -2 cot 2A cos A=

cosec A- 2cot 2A cos A=

Prove that: cotA-cot2A="cosec"2A

Prove that: cotA-cot2A="cosec"2A

Show that tan A+cot A=2 cosec 2A

prove that tan A+cot A=2 cosec 2A

Prove that tan A + cot A = 2 "cosec 2A" .

" cosec 2x + cot 2x = cot x "

( cos A - sin A + 1 ) / ( cos A + sin A - 1 ) = cosec A + cot A cosec A + cot A , = using the identity cosec ^ 2 A = 1 + cot^ 2 A .