If x-a cos- and y-b sin- then b2 x2-a2 y2 is equal toA- abB- a2-b2C- a2 b2D- a4 b4

The correct option is C a2b2 ...

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Value of Standard Angle(30,60,90)

If x=a cosθ a...

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If x = a cos θ and y = b sin θ then b²x² + a²y² is equal to

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a² + b²

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a²b²

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a⁴b⁴

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x = a cos θ and y = b sin θ

b^{2} x^{2} + a^{2} y^{2}

x = a cos θ

y = b sin θ

\frac{x^{2}}{a^{2}} + \frac{y^{2}}{b^{2}} =

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