Question

A tangent ax - μy = 2 to hyperbola a⁴ x²/λ² - b² y²/1 = 4, then the value of (λ/a)² - (μ/b)² is

(a) 0

(b) 1

(c) 2

(d) 3

Answer 1

Correct option is (b) 1

Given, 

Now , tangent to above hyperbola is