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Find the Values of sin (pi/8) ,cos (pi/ ...

Find the Values of `sin (pi/8) ,cos (pi/ 8) ,sec (pi/8) ,cosec (pi/8) ,tan (pi/8) and Cot (pi/8)`

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Knowledge Check

  • Value of cos^3 (pi/8)cos^3 ((3pi)/8) + sin^3 (pi/8)sin^3 ((3pi)/8) is

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

  • The value of cos^4(pi/8)+ cos^4((3pi)/8) + cos^4(5 pi)/8)+ cos^4((7pi)/8) is

    A
    0
    B
    `1/2`
    C
    `3/2`
    D
    1

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    12.Find the value of tan((pi)/(8))

    tan(pi/8)+cot(pi/8)=

    Find the value of (a) sin(pi)/(8) (b) cos(pi)/(8) (c) tan (pi)/(8)

    The value of 2 sin (pi/8) sin((2pi)/8) sin((3pi)/8) sin ((5pi)/8) sin ((6pi)/8) sin((7pi)/8) is :

    The value of cos(pi)/(8)cos(3 pi)/(8)cos(5 pi)/(8)cos(7 pi)/(8) is equal to

    cos ((pi) / (8)) cos ((3 pi) / (8)) cos ((5 pi) / (8)) cos ((7 pi) / (8)) =

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