यदि \(A=\{1,2,3,4\}\), \(B=\{0,1\}\) और (f(x)=0) जब (x) सम हो तथा (f(x)=1) जब (x) विषम हो, तो (f(4)) क्या है?
If \(A=\{1,2,3,4\}\), \(B=\{0,1\}\), and (f(x)=0) when (x) is even and (f(x)=1) when (x) is odd, what is (f(4))?
Explanation opens after your attempt
Correct Answer
A. (0)
Concept
(4) is even, so (f(4)=0). In exams, identify the condition first in a piecewise rule.
Why this answer is correct
The correct answer is A. (0). (4) is even, so (f(4)=0). In exams, identify the condition first in a piecewise rule.
Exam Tip
(4) सम है, इसलिए (f(4)=0) होगा। परीक्षा में पीसवाइज नियम में शर्त पहले पहचानें।
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