If A - a - b - a 2- b 2-25- and -a - b - N then n A -A- 1B- 2C- 12D- 4

Name: JEE- Grade 11- Mathematics- Fundamentals of Mathematics 10- Session 10- W13
Uploaded: 2022-07-04T10:36:42+05:30
Description: The correct option is B 2A={(3,4),(4,3)}⇒ n(A)=2 ...

The correct option is B 2A={(3,4),(4,3)}⇒ n(A)=2 ...

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Standard XII

Mathematics

Cardinality of Sets

If A = a , b ...

Question

If $A = {(a, b) : a^{2} + b^{2} = 25 and a, b \in N}$ then $n (A) =$

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Solution

The correct option is B $2$
$A = {(3, 4), (4, 3)} \Rightarrow n (A) = 2$

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Cardinality of Sets

Standard XII Mathematics

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If A={(a,b):a2+b2=25 and a,b∈N} then n(A)=

The correct option is B 2A={(3,4),(4,3)}⇒n(A)=2

If $A = {(a, b) : a^{2} + b^{2} = 25 and a, b \in N}$ then $n (A) =$

The correct option is B $2$
$A = {(3, 4), (4, 3)} \Rightarrow n (A) = 2$