HyperbolaHard

Question

-If the straight line x cos α + y sin α = p be a tangent to the hyperbola = 1, then-

Options

A.a² cos² α + b² sin² α = p²

B.a² cos² α − b² sin² α = p²

C.a² sin² α + b² cos² α = p²

D.a² sin² α − b² cos² α = p²

Solution

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