If cos 27° = x, then the value of tan 63° is :

cos 27° = x

cos θ =  \(\frac{B }{H}\) =  \(\frac{x }{1}\)

P² + B² = H² 

P² + x² = 1²

P = \(\sqrt { 1 - x² }\)

We know , tan 63° = cot 27°

So , cot 27° =  \(\frac{x }{\sqrt { 1 - x² }\ }\