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If ax + by = 1 is a tangent to the hyperbola x^2/a^2 - y^2/b^2 = 1 then a2 - b2 = 1

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If ax + by = 1 is a tangent to the hyperbola x2/a2 - y2/b2 = 1 then a2 - b2 = 1

(a)  b2e2

(b)  1/b2e2

(c)   a2e2

(d)  1/a2e2

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1 Answer

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Best answer

Correct option  (d) 1/a2e2

Explanation :

We know that

y = (-a/b)x + 1/b

is a tangent which implies that

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