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5 tan^2 A -5sec^2 A+1 is equal to (a) ...

`5 tan^2 A -5sec^2 A+1` is equal to
(a) 6
(b) -5
(c) 1
(d) -4

A

6

B

`-5`

C

1

D

`-4`

Text Solution

Verified by Experts

The correct Answer is:
D
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