Question

if sec = x and tan = 1/x then find x^2-1/x^2

Answer 1

Step-by-step explanation:

(x+1/x)^2

x^2 + 1/x^2 - 2 = 0

x^2 +1/x^2 = 2

Answer 2

sec(theta)=X

tan(theta)=1/X

now ...

$x {}^{2} - \frac{1}{x {}^{2} } \\ = \sec {}^{2} (theta) - \tan {}^{2} (theta) \\ = 1$