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[" the "Y" -axis."],[" 1.Show that the t...

[" the "Y" -axis."],[" 1.Show that the tangent at "P(x_(1),y_(1))" on the curve "],[qquad sqrt(x)+sqrt(y)=sqrt(a)" is "yy_(1)^((-1)/(2))+xx_(1)^(-1)=(1)/(a^(2))]

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