Example 8 - Chapter 6 Class 11 Permutations and Combinations

Last updated at July 20, 2026 by

Example 8 - If 1/8! + 1/9! = x/10! , find x - Class 11 - Examples - Examples

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Example 8 If 1/8! + 1/9! = ( š‘„ )/10! , find x . 1/8! + 1/9! = š‘„/10! 10! (1/8! " + " 1/9!) = x 10!/8! + 10!/9! = x (10 Ɨ 9 Ɨ 8!)/8! + (10 Ɨ 9!)/9! = x 10 Ɨ 9 + 10 = x 90 + 10 = x 100 = x Hence, x = 100

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