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posted by on .

Which is the correct cofunction identity for (tan theta?)

A csc(90degrees - theta)
B sec (90degrees - theta)
C sin (90degrees - theta)
D cos (90degrees - theta)
E cot (90degrees - theta)

  • Calculus - ,

    co-f(x) = f(90-x)
    so that would be (E)

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