Question

Find all values of θ in the interval (- π/2, π/2) satisfying the equation (1 - tanθ)(1 + tanθ) sec²θ + 2^{tan^2θ} = 0

Answer 1

Given,

Curvex y = x² - 1

and  y = 2^x 

It is clear from the graph that two curves intersect at one point at x = 3, y = 8.