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If cos theta = 1/2, then the value of th...

If `cos theta = 1/2`, then the value of `theta` will be -

A

`420^(@)`

B

`60^(@)`

C

`300^(@)`

D

`330^(@)`

Text Solution

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The correct Answer is:
A, B, C
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Knowledge Check

  • If tan theta = -1/(sqrt(5)) , then the value of cos theta will be -

    A
    -`(sqrt5)/(sqrt6)`
    B
    `1/(sqrt6)`
    C
    `(sqrt5)/(sqrt6)`
    D
    `1/2`

  • If 0 lt theta lt pi/2 and sin 2 theta = cos 3 theta, then the value of sin theta is-

    A
    `(sqrt5-1)/(4)`
    B
    `1/2`
    C
    `(sqrt5+1)/(4)`
    D
    `(sqrt3)/(2)`

  • If cos theta -4 sin theta =1, then the value of (sin theta+4 cos theta) is-

    A
    `pm4`
    B
    `pm3`
    C
    `pm2`
    D
    `pm1`

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