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If y=loge(x/(a+b x))^x , then x^3y2 is ...

If `y=log_e(x/(a+b x))^x` , then `x^3y_2` is (a) `(x y_1-y)^2` (b) `(1+y)^2` (c) `((y-x y_1)/(y_1))^2` (d) none of these

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To solve the problem, we need to find the value of \( x^3 y_2 \) where \( y = \log_e\left(\frac{x}{a + bx}\right)^x \). ### Step 1: Rewrite the function \( y \) Using the properties of logarithms, we can rewrite \( y \): \[ y = x \log_e\left(\frac{x}{a + bx}\right) = x \left(\log_e(x) - \log_e(a + bx)\right) \] ...
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RD SHARMA-HIGHER ORDER DERIVATIVES-Solved Examples And Exercises
  1. If y=a+b x^2,\ a ,\ b arbitrary constants, then (d^2y)/(dx^2)=2\ x y...

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  2. If f(x)=(cosx+isinx)(cos2x+isin2x)(cos3x+isin3x)ddot(cosn x+isinn x) a...

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  3. If y=asinm x+bcosm x , then (d^2y)/(dx^2) is equal to (a)-m^2y (b) m^2...

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  4. If f(x)=(sin^(-1)x)/(sqrt(1-x^2)),t h e n(1-x^2)f^(x)-xf(x)= 1 (b) ...

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  5. If y=tan^(-1){((log)e(e//x^2))/((log)e(e x^2))}+tan^(-1)((3+2\ (log)e ...

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  6. Let f(x) be a polynomial. Then, the second order derivative of f(e^...

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  7. If y=acos((log)e x)+bsin((log)e x) , then x^2\ y2+x y1= (a) 0 (b) y (...

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  8. If x=2at at y=a t^2 , where a is a constant, then (d^2y)/(dx^2) at x=1...

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  9. If x=f(t) and y=g(t) , then (d^2y)/(dx^2) is equal to (f^(prime)g"-g'\...

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  10. If y=sin(m\ sin^(-1)x) , then (1-x^2)y2-x y1 is equal to m^2y (b) m y ...

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  11. If y=(sin^(-1)x)^2,\ then (1-x^2)y2 is equal to x y1+2 (b) x y1-2 (c)...

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  12. If y=e^(tanx) , then (cos^2x)y2= (1-sin2x)y1 (b) -(1+sin2x)y1 (c) (1...

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  13. If y=2/(sqrt(a^2-b^2)){tan^(-1)((a-b)/(a+b))tanx/2} , then show that (...

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  14. If y=(a x+b)/(x^2+c), prove that (2x y1+y)y3=3(x y2+y1)y2.

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  15. If y=loge(x/(a+b x))^x , then x^3y2 is (a) (x y1-y)^2 (b) (1+y)^2 (c)...

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  16. If x=f(t)cost-f^(prime)(t)sint and y=f(t)sint+f^(prime)(t)cost , then ...

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  17. If y^(1/m)+y^(-1/m) = 2x then (x^2-1)y2+xy1 is equal to

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  18. If y=x^(n-1)logx then x^2y2+(3-2n)x y1 is equal to -(n-1)^2y (b) (n-1...

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  19. If x y-(log)e y=1 satisfies the equation x(y y2+y1 2)-y2+lambday y1=0,...

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  20. If y^2=a x^2+b x+c , then y^3(d^2y)/(dx^2) is (a) a constant (b) a fun...

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