Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AP EAMCET20224 Jul 2022Morning ShiftMathematicsDifferentiationActual

If x 3 - 2 x 2 y 2 + 5 x + y - 5 = 0 , then at 1 , 1 , y ' ' 1 =

Options

  1. A- 197 27
  2. B125 31
  3. C12
  4. D- 238 27

Correct answer

D. - 238 27

Step-by-step solution

Given, x 3 - 2 x 2 y 2 + 5 x + y - 5 = 0 Now derivative of equation w.r.t. x will be ⇒ 3 x 2 - 4 xy 2 - 4 x 2 yy ' + 5 + y ' - 0 = 0         . . . 1 Given that y 1 = 1 ⇒ 3 - 4 - 4 y ' 1 + 5 + y ' 1 = 0 ⇒ y ' 1 = 4 3 Derivative of equation 1 w.r.t. x will be ⇒ 6 x - 4 y 2 - 8 x y y ' - 8 x y y ' - 4 x 2 y ' y ' - 4 x 2 y y '' + y '' = 0 ⇒ 6 - 4 - 8 × 4 3 - 8 × 4 3 - 4 × 16 9 - 4 y '' 1 + y &#3

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 AP EAMCET PYQs