If x=a cosθ, y = b sinθ, then find the value of b^2x^2+a^2y^2-a^2b^2.

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If x=acosθ, y = bsinθ, then find the value of b2x2+a2y2-a2b2.
If x=a cos theta, y = b sin theta, then find the value of b2x2+a2y2-a2b2.
If x=a cosθ, y = b sinθ, then find the value of b^2x^2+a^2y^2-a^2b^2.
Class 10 Maths chapter 8 introduction to trigonometry.
important question
cbse board exam
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