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9 sec ^ 2 A - 9 tan ^ 2 A = ?...

` 9 sec ^ 2 A - 9 tan ^ 2 A = ? `

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The correct Answer is:
9
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Knowledge Check

  • ( sec A + tan A ) ( 1 - sin A ) = ?

    A
    ` sec A `
    B
    ` sin A `
    C
    ` cosec A `
    D
    ` cos A `

  • sec (2 tan ^(-1) (3)/(2))=

    A
    `(13)/(5)`
    B
    `(5)/(13)`
    C
    `-(13)/(5)`
    D
    `-(5)/(13)`

  • 10sec^(2)A-10tan^(2)A= _______

    A
    `sec^(2)A`
    B
    10
    C
    1
    D
    0

    • Similar Questions

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    If sec A = x + 1/(4x) , prove that sec A + tan A = 2x or (1)/(2x)

    Prove that (sin A +cosec A) ^(2) +(cos A +sec A) ^(2) =7+ tan ^(2) A +cot ^(2) A

    Find the number of roots of the equation 16 sec^(3) theta - 12 tan^(2) theta - 4 sec theta =9 in interval (-pi,pi)

    find the general solution of sec^(2)x tan y dx + sec^(2) y tan x dy = 0

    If | x + 2 | le 9 , then :

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