C. 9 / 9
ExplanationStep 1: Factorial relation is 9! = 9×8!. Step 2: 9!/8! = 9. Step 3: Factorial cancellation makes calculation easier.
Step 1: Factorial relation 9! = 9×8! होता है। Step 2: 9!/8! = 9 है। Step 3: Factorial cancellation से calculation आसान होती है।
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