The value of sin^(-1)(cos((33pi)/5)) is ...

The value of `sin^(-1)(cos((33pi)/5))` is (a) `(3pi)/5` (b) `-pi/(10)` (c) `pi/(10)` (d) `(7pi)/5`

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The amplitude of sin (pi)/(5) +i(1-cos"" (pi)/(5)) is

A

(a) `(2pi)/(5)`

B

(b) `(pi)/(5)`

C

(c) `(pi)/(15)`

D

(d) `(pi)/(10)`

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