>
Exams
>
Mathematics
>
Continuity and differentiability
>
the function f x y cases x 3 y 3 x 2 y 2 when x 0
Question:
The function
\[f(x,y) = \begin{cases} \frac{x^3-y^3}{x^2+y^2} ,when \space x≠0, y≠0.\\ k, when \space x = 0, y=0 \end{cases}\]
is continuous at (0,0), then k is equal to:
CUET (PG) - 2023
CUET (PG)
Updated On:
Mar 12, 2025
2
3
1
0
Hide Solution
Verified By Collegedunia
The Correct Option is
D
Solution and Explanation
The correct option is(D):0
Download Solution in PDF
Was this answer helpful?
0
0
Top Questions on Continuity and differentiability
Assertion (A): \( f(x) = [x] \), \( x \in \mathbb{R} \), the greatest integer function is not differentiable at \( x = 2 \). Reason (R): The greatest integer function is not continuous at any integral value.
CBSE CLASS XII - 2025
CBSE Compartment XII - 2025
Mathematics
Continuity and differentiability
View Solution
If $(x)^y = (y)^x$, then find $\frac{dy}{dx}$.
CBSE CLASS XII - 2025
Mathematics
Continuity and differentiability
View Solution
Differentiate $y = \cos^{-1}\left( \frac{1 - x^2}{1 + x^2} \right)$ with respect to $x$, when $x \in (0, 1)$.
CBSE CLASS XII - 2025
Mathematics
Continuity and differentiability
View Solution
Differentiate $y = \sin^{-1}(3x - 4x^3)$ with respect to $x$, for $x \in \left[ -\frac{1}{2}, \frac{1}{2} \right]$.
CBSE CLASS XII - 2025
Mathematics
Continuity and differentiability
View Solution
(a) Differentiate $\sqrt{e^{\sqrt{2x}}}$ with respect to $e^{\sqrt{2x}}$ for $x>0$.
CBSE CLASS XII - 2025
Mathematics
Continuity and differentiability
View Solution
View More Questions
Questions Asked in CUET PG exam
Which tense is appropriate: How did Saira ?
CUET (PG) - 2025
Tenses
View Solution
Find the error: "One of my friends is going to (part B)". Which verb is correct?
CUET (PG) - 2025
Error Spotting
View Solution
Identify the possessive noun: My office car is parked elsewhere.
CUET (PG) - 2025
Nouns
View Solution
What do you call a person who works for the welfare of humans?
CUET (PG) - 2025
One Word Substitution
View Solution
Which preposition is correct: Chanakya lived ?
CUET (PG) - 2025
Prepositions
View Solution
View More Questions