Given that cos x =p find an expression, in terms of p, for tan^2 x?
2 Answers
Oct 12, 2015
Explanation:
If cos x =p,
tan x =
Oct 12, 2015
Explanation:
If
cos^2 x = p^2 .
By Pythagoras,
sin^2 x = 1 - cos^2 x = 1 - p^2
Now
tan^2 x = sin^2 x / cos^2 x = (1 - p^2)/p^2 = 1/p^2 - 1