Question

Choose the correct alternative and answer the following If cos X=a/b, then sin X is equal to

Answer 1

Using identity
Sin^2X+cos^2X=1
We can find the value of cosX

Answer 2

Answer:

$\sin(x) = \frac{ \sqrt{( {b}^{2} - {a}^{2}) } }{ \sqrt {b}^{2} } \\ = > \sin(x) = \frac{ \sqrt{( {b}^{2} - {a}^{2} )} }{b}$