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4sinthetacostheta =1+2costheta -2sinthet...

`4sinthetacostheta =1+2costheta -2sintheta (0 lt theta lt pi)`

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`pi/6, (2pi)/3, (5pi)/6`
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Solve theta for 4sinthetacostheta=1+2costheta-2sintheta (0

sin 2theta = cos 3theta (0 lt theta lt pi)

Knowledge Check

  • If tan theta + sec theta=4, then the value of sin theta (0 lt theta lt (pi)/(2)) is-

    A
    `8/15`
    B
    `5/9`
    C
    `15/17`
    D
    `3/5`

    • Similar Questions

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    (1-2sintheta -2costheta + cottheta) =0 (0 lt theta lt 2pi)

    1+2sintheta costheta-2sintheta - costheta =0 (0^(@) le theta le 360^(@))

    (sec theta +1) = (2+sqrt(3))tantheta (0 lt theta lt 2pi)

    costheta - sintheta = 1/sqrt(2) (-pi lt theta lt pi)

    cot theta + tantheta = 2sectheta (0^(@) lt theta lt 360^(@))

    If sintheta -cos theta=sqrt(2)costheta,"show that" sintheta+costheta=sqrt(2)sintheta(0ltthetalt pi/2).

    Let P = [theta : sintheta – costheta = sqrt2 costheta) andQ= {theta : sintheta + costheta = 12 sintheta} be two sets. Then:

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