4cot^2 A - 4 cosec^2 A = ?...

`4cot^2 A - 4 cosec^2 A = ?`

A

`1`

B

`-1`

C

`4`

D

`-4`

Verified by Experts

The correct Answer is:

D

4cot^2 A - 4 cosec^2 A = ?
Text Solution
|
Prove that: i) cot^(2)A+cot^(4)A="cosec"^(4)A-"cosec"^(2)A ii) tan...
Text Solution
|
Prove that: 2sec^(2)A-sec^(4)A-2"cosec"^(2)A+"cosec"^(4)A=cot^(4)A-t...
Text Solution
|
cosec^(4)theta+cot^(2)theta+cosec^(2)theta)"=
Text Solution
|
Evaluate each of the following : (sin^(2)+30^(@)+4cot^(2)45^(@)-sec^...
Text Solution
|
सिद्ध कीजिए (I ) cot^(2) A + cot^(4)A = "cosec"^(4)A- "cosec"^(2)...
Text Solution
|
2 sec^(2) theta - sec^(4) theta - 2 "cosec"^(2) theta + " cosec"^(4) t...
Text Solution
|
(1)/(sec^(4) alpha ) +(1)/("cosec"^(4) alpha ) +(2)/(sec^(2) alpha + ...
Text Solution
|
सिद्ध कीजिए की : 4cot ^(2) 45^(@) -cosec ^(2) 30^(@) +cos ^(3) 60^(...
Text Solution
|