\({}^{5}P_{4}\) का मान क्या है?
What is the value of \({}^{5}P_{4}\)?
Explanation opens after your attempt
A. (120)
Concept
\({}^{5}P_{4}=5\times4\times3\times2=120\). When (r=4), take (4) decreasing factors.
Why this answer is correct
The correct answer is A. (120). \({}^{5}P_{4}=5\times4\times3\times2=120\). When (r=4), take (4) decreasing factors.
Exam Tip
\({}^{5}P_{4}=5\times4\times3\times2=120\) है। (r=4) हो तो (4) घटते गुणनखंड लें।
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