निम्नलिखित से \( n \) के मान ज्ञात कीजिए- \[ 10 \cdot{ }^{n} P_{6}={ }^{n+1} P_{7} \]

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निम्नलिखित से \( n \) के मान ज्ञात कीजिए-
\[
10 \cdot{ }^{n} P_{6}={ }^{n+1} P_{7}
\]
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