Problem ques Flashcards
1
Q
When you have n/9! + n/10! you can multiply both the num and den of n/9! with 10 to get same den, hence becomes easier to solve.
10×9!=10!
A
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When you have n/9! + n/10! you can multiply both the num and den of n/9! with 10 to get same den, hence becomes easier to solve.
10×9!=10!
Key Links
Subjects
Company
Find Us
