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The value of (sin 75^(@) -cos 75^(@)) is...

The value of `(sin 75^(@) -cos 75^(@))` is-

A

`(1)/(sqrt2)`

B

`1/2`

C

`-(1)/(sqrt2)`

D

`(1)/(2sqrt2)`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • The value of (cos 15^(@) -sin 15^(@)) is-

    A
    1
    B
    `(1)/(sqrt2)`
    C
    `-(1)/(sqrt2)`
    D
    `1/2`

  • The value of (sin43^(@)cos47^(@)+cos43^(@)sin47^(@)) is

    A
    0
    B
    1
    C
    `sin4^(@)`
    D
    `cos4^(@)`

  • The value of cos^2 75^@ +cos^2 45^@ +cos^2 15^@- cos^2 30^@-cos^2 60^@ is

    A
    0
    B
    1
    C
    1/2
    D
    1/4

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