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If sec x cos 5x+1=0 , where 0lt x ltπ/...

If ` sec x cos 5x+1=0 `, where ` 0lt x ltπ/2`, then x=

A

`(pi)/(6),(pi)/(4)`

B

`(pi)/(6)`

C

`(pi)/(4)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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