7. ffy=a cos (log b sin(log ). show...
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7. ffy=a cos (log b sin(log ). show that

11th - 12th Class
Maths
Solution
115
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4.0 (1 ratings)
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y=a cos(log)+bsin(logx) y1=dydx=-asin(logx)x+bcos(log2)x xy1=-asin(logx)+bcos(logx) y1+xy2=-acos(logx)x-b(sin)logxx xy1+x2y2=-(acos/logx)+bsin(logx)) xy1+x2y2=-y x2y2+xy1+y=0 x2d2ydx2+xdydx+y=0 

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