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The expression (t a n A)/(1-cot A)+(cot ...

The expression `(t a n A)/(1-cot A)+(cot A)/(1-t a n A)` can be written as `sin A cos A+1` b. `s e c A\ cos e c A+1` c. `t a n A+cot A` d. `s e c A+cos e c A`

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Knowledge Check

  • In a triangle ABC, if cot A + cot B + cotC =cot theta , then ( sin A sin B sin C )/( 1+ cos A cos B cos C ) =

    A
    `tan^(2) theta`
    B
    ` cot ^(2) theta`
    C
    `cot theta`
    D
    `tan theta `

  • If, in Delta ABC, cos A = cos B cdot cos C , then: cot B cdot cot C= .....

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

  • If cot B = ( sin A - sin C )/( cos C - cos A ) then A,B,C are in

    A
    A.P.
    B
    G.P.
    C
    H.P.
    D
    none

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    x=e^t (sin t + cos t ),y=e^t(sin t -cos t)

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