Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET202519 Apr 2025Evening ShiftMathematicsDifferentiationActual

If x^ 2 5 + y ^ 2 5 =a^ 2 5 then dy d x =

Options

  1. A[5] ( y x )^3
  2. B- [5] ( x y )^3
  3. C[5] ( x y )^3
  4. D- [5] ( y x )^3

Correct answer

D. - [5] ( y x )^3

Step-by-step solution

Given the implicit equation x^ 2 5 + y^ 2 5 = a^ 2 5 , we seek the derivative d y d x . Differentiating both sides with respect to x , and applying the chain rule to the y term: 2 5 x^ - 3 5 + 2 5 y^ - 3 5 d y d x = 0 Solving for d y d x : 2 5 y^ - 3 5 d y d x = - 2 5 x^ - 3 5 Dividing both sides by common factors and simplifying: d y d x = - y^ 3 5 x^ 3 5 This may be expressed as d y d x = - ( y x )^ 3 5 , which matches option D.

Practice Differentiation on Quantrex Academy →

More from Differentiation

The domain of the derivative of the function f(x)= x 1+|x| is 2025If x= 2^ cosec ⁻¹ t and y= 2^ ⁻¹ t ,|t| 1 then d y d x = 2025If (a+ 2 b x)(a- 2 b y)=a^2-b^2 where a>b>0 , then at ( 4 , 4 ) , dy dx = 2025If x y - y x =0 , then d y d x = 2025If y = ( _ x x )^ x , then dy dx = 2025If f(x)=x^ Sec ⁻¹ x , then f^ (2)= 2025If y= x^4 3 x-5 (x^2-3 )(2 x-3) , then ( d y d x )_ x=2 = 2025If x^2+y^2+ y=4 , then the value of d^2 y d x^2 at x=-2 is 2025 Full Differentiation list All MHT CET PYQs