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Choose the correct option. Justify your ...

Choose the correct option. Justify your choice : `9sec^2A-9tan^2A=` a. 1 b. 9 c. 8 d. 0

A

1

B

9

C

8

D

0

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • Choose the coorect option. Justify choice : 9 sec^(2)A - 9 tan^(2)A =

    A
    1
    B
    9
    C
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    D
    7

  • Choose the coorect option. Justify choice : (1+ tan theta + sec theta)(1+ cot theta - cosec theta) =

    A
    0
    B
    1
    C
    2
    D
    none of these

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