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- यदि sin theta = (x^2 - y^2 )/(x^2 + y^2 ) , तब cos theta और 1/tanth...
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- If (x)/(a)cos theta+(y)/(b)sin theta=1 and (x)/(a)sin theta-(y)/(b)cos...
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- If x costheta=y sin theta=sqrt(x^(2)+y^(2)) and (cos^(2)theta)/(a^(2...
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- यदि (x)/(a) cos theta + (y)/(b) sin theta =1 तथा (x)/(a) sin theta - ...
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- x=a sin theta, y=a cos theta " then "x^2+y^2=…………
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