BITSAT2016MathematicsDifferential EquationsActual
For any differentiable function y of x , d² x d y² ( d y d x )³+ d² y d x² =
Options
- A0
- By
- C-y
- Dx
Correct answer
A. 0
Step-by-step solution
d y d x = ( d x d y )⁻¹ d² y d x² =-1 ( d x d y )⁻² d d x ( d x d y ) d² y d x² =(-1) ( d x d y )⁻² d d y ( d x d y ) d y d x =(-1) ( d y d x )² d² x d y² d y d x =- ( d y d x )³ d² x d y² d² x d y² ( d y d x )³+ d² y d x² =0