Question

Find the value of cos(x), if sec(x) = 3/2. 0 12 years ago

Answer 1

secant is the inverse of cosine. Likewise, cosine is the inverse of secant. Therefore,
\[\sec(x) = 3/2\]

\[cosx = (secx)^{-1} = \frac{ 2 }{ 3 }\]

Answer 2

thanks :)