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If x^2+y^2=1,t h e n y y^-2(y^(prime))^...

If `x^2+y^2=1,t h e n` `y y^-2(y^(prime))^2+1=0` `y^+(y^(prime))^2+1=0` `y y^+(y^(prime))^(-2)-1=0` `y y^+2(y^(prime))^2+1=0`

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If x^2+y^2=1,t h e n (a) y y^('')-2(y^(prime))^2+1=0 (b) yy^('')+(y^(prime))^2+1=0 (c) y y^('')+(y^(prime))^(-2)-1=0 (d) y y^('')+2(y^(prime))^2+1=0

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If x^3-2x^2y^2+5x+y-5=0 and y(1)=1 , then (a) y^(prime)(1)=4/3 (b) y'(1)=-4/3 (c) y''(1)=-8(22)/(27) (d) y^(prime)(1)=2/3