How do you simplify $sin ({csc}^{- 1} (\frac{15}{17}))$ $sin(csc^-1(15/17))$ ?

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Answer 1 · 2016-08-30T14:38:27

Invalid expression.

For any a, $| csc a | \geq 1$ $|csc a|>=1$ .

Here, it is $\frac{15}{17} < 1$ $15/17<1$ .

So, the given expression $sin a = \frac{1}{csc a} = \frac{17}{15} > 1$ $sin a = 1/csc a = 17/15 > 1$ is an invalid

expression.

How do you simplify sin(csc^-1(15/17))sin(csc−1(1517))sin(csc^-1(15/17))?