Published by:
CGP EDU Academic Team
Published on: August 13, 2026
If 2x y + 3y x = 20, then 
at (2, 2) is equal to:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Given,
2x y + 3y x = 20
Now differentiating both sides w.r.t x, we get
{here ln=log e }
Putting x = 2 & y = 2, we get
8(ln2. y' + l)+12(lny +y')= 0
8(ln2.y' + l)+12(ln y + y')=0
──────────────────────────────────────────────────────────────────────────────────────────
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Let
Then at is equal to
Let and be twice differentiable functions on R such that
Then which of the following is NOT tr…
Let
, then at
If , then is equal to
Let be a differentiable function that satisfies the relation
. If then if
Let k and m be positive real numbers such that the function is differentiable for all x > 0. Then …