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why we are using only (acostheta,bsintheta) as parametric for ellipse why not (asintheta,bcostheta) why we are using only (acostheta,bsintheta) as parametric for ellipse why not (asintheta,bcostheta)
Dear student Yes you can use (a sin theta, b cos theta) also but you have to prove all formulae according to this and nothing wring in this. Generally in books and author take (a costheta, b sin theta) hence they have solved all formulae accordingly
Dear student This is the concept of eigen function and eigen vector , you will study in college.We can use both but for more convience and making it standard we use (a sin theta, b cos theta).
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