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If tan theta + sin theta =m and tan thet...

If `tan theta + sin theta =m` and `tan theta- sin theta =n` then `m^2-n^2` is equal to

A

4 mn

B

`4sqrt(mn)`

C

2 mn

D

`2sqrt(mn)`

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • (sec theta + tan theta) (1- sin theta) =

    A
    `cos theta`
    B
    `cos^2 theta`
    C
    `sin^2 theta`
    D
    `tan^2 theta`

  • If 11theta=90^(@), then the value of the expression tan theta tan 2 theta tan 3 theta tan 4 theta tan 5 theta tan 6 theta tan 7 theta tan 8 theta tan 9 theta tan 10theta is equal to-

    A
    0
    B
    1
    C
    `-1`
    D
    2

  • If sin theta+ cosec theta =2 then sin^n theta +cosec^n theta is equal to

    A
    2
    B
    2)
    C
    `2^n"^(-1)`
    D
    `2^n"^(-2)`

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