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(a) If y=cos(msin^(-1)x) prove that (1-x...

(a) If `y=cos(msin^(-1)x)` prove that `(1-x^(2))y_(3)-3xy_(2)+(m^(2)-1)y_(1)=0`
(b) Find `y'' if x^(4)+y^(4)=16`.

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FULL MARKS-SAMPLE PAPER 13-PART
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  8. Show that |{:(x,a,a),(a,x,a),(a,a,x):}|=(x+2a)(x-a)^2

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  20. (a) If y=cos(msin^(-1)x) prove that (1-x^(2))y(3)-3xy(2)+(m^(2)-1)y(1)...

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