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If `x=a sin theta` and `y=b cos theta`, then prove `: (x^(2))/(a^(2))+(y^(2))/(b^(2))=1`
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If `x=a sin theta` and `y=b cos theta`, then prove `: (x^(2))/(a^(2))+(y^(2))/(b^(2))=1`
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