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sin theta cos(90^@ -theta) +cos theta si...

`sin theta cos(90^@ -theta) +cos theta sin(90^@ -theta)` = ?

A

1

B

2

C

`-1`

D

0

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Write the value of sintheta cos(90^(@)-theta)+costheta sin(90^(@)-theta).

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Knowledge Check

  • Evaluate : sin theta cos theta - (sin theta cos (90^(@) - theta) cos theta)/( sec (90^(@) - theta)) - (cos theta sin (90^(@) - theta) sin theta)/( cosec (90^(@) - theta))

    A
    `-1`
    B
    2
    C
    0
    D
    1

    • Similar Questions

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    (sin^(2) 20^(@) + sin^(2) 70^(@))/(cos^(2) 20^(@) + cos^(2) 70^(@)) + [ (sin (90^(@) - theta).sin theta)/(tan theta) + (cos (90^(@) - theta).cos theta)/(cot theta) ] .

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