\({}^{8}P_{2}\) का मान क्या है?
What is the value of \({}^{8}P_{2}\)?
Explanation opens after your attempt
A. (56)
Concept
\({}^{8}P_{2}=8\times7=56\). When (r=2), take two decreasing factors.
Why this answer is correct
The correct answer is A. (56). \({}^{8}P_{2}=8\times7=56\). When (r=2), take two decreasing factors.
Exam Tip
\({}^{8}P_{2}=8\times7=56\) होता है। (r=2) हो तो दो घटते गुणनखंड लें।
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