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If `((x)/(a) sin theta -(y)/(b) costheta )=1 and ((x)/(a)costheta +(y)/(b) sin theta)=1`, prove that
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If `((x)/(a) sin theta -(y)/(b) costheta )=1 and ((x)/(a)costheta +(y)/(b) sin theta)=1`, prove that `((x^(2))/(a^(2))+(y^(2))/(b^(2)))=2.`
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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`
if x=a sin theta and y=b cos theta then d2y/dx2 #pc2023 #mathematics #differentialcalculus #class11
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