InterviewSolution
Saved Bookmarks
| 1. |
Differentiate with respect to x to the given function`(3x+4)/(5x^(2)-7x+9)` |
|
Answer» Let `y=(3x+4)/(5x^(2)-7x+9)` `therefore (dy)/(dx) = (5x^(2)-7x+9)d/(dx)(3x+4)-(3x+4)d/(dx)(5x^(2)-7x+9)` `therefore (dy)/(dx) = ((5x^(2)-7x+9)d/(dx)(3x+4)-(3x+4)d/(dx)(5x^(2)-7x+9))/(5x^(2)-7x+9)^(2)` `=((5x^(2)-7x+9).3-(3x+4)(10x-7))/(5x^(2)-7x+9)^(2)` `=(15x^(2)-21x+27-30x^(2)+21x-40x+28)/(5x^(2)-7x+9)^(2)` `=(-15x-40x+55)/(5x^(2)-7x+9)^(2)` `(55-15x^(2)-40x)/(5x^(2)-7x+9)^(2)` |
|