If x-a - and y-b tan- then b2 x2-a2 y2-a a bb a2-b2c a2-b2d a2 b2

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Complementary Trigonometric Ratios

If x=a θ and ...

Question

If x = a sec θ and y = b tan θ, then b²x² − a²y² =

(a) ab
(b) a² − b²
(c) a² + b²
(d) a² b²

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