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If (sec theta - 1)(sec theta + 1) = 1/3,...

If `(sec theta - 1)(sec theta + 1) = 1/3,`then `cos theta` = …………

A

`1/2 `

B

`1/sqrt2`

C

`sqrt3/2`

D

`sqrt2/3`

Text Solution

Verified by Experts

The correct Answer is:
C
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