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If sec(theta +alpha)+sec(theta-alpha = 2...

If `sec(theta +alpha)+sec(theta-alpha = 2sectheta, costheta` is equal to :

A

`pmsqrt2sin""(alpha)/(2)`

B

`pmsqrt2tan""(alpha)/(2)`

C

`pmsqrt2cos""(alpha)/(2)`

D

`pmsqrt2sec""(alpha)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • costheta xx sec theta is equal to :

    A
    `-1`
    B
    1
    C
    0
    D
    `2cos theta.`

  • If (sectheta+ tantheta)/(sectheta+tantheta)=5/3 ,then sintheta is equal to : यदी (sec theta + tan theta)/(sec theta - tan theta) = 5/3 हो, तो sin theta किसके बराबर होगा?

    A
    `2/3`
    B
    `3/4`
    C
    `1/4`
    D
    `1/3`

  • sec^(4) theta - sec^(2) theta is equal to

    A
    `tan^(2) theta - tan^(4) theta`
    B
    `tan^(2) theta + tan^(4) theta`
    C
    `cos^(4) theta - cos^(2) theta`
    D
    `cos^(2) theta - cos^2 theta`

    • Similar Questions

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