Grade 12Magical Mathematics[Interesting Approach]
Evaluate the following
(i) 6 ! (ii) 5 ! – 2 !
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Evaluate the following
(i) 6 ! (ii) 5 ! – 2 !
guktrewaaaayhtrjikuoliufysdwefr
1 Answer
Harshit Singh
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i)6! = 1 × 2 × 3 × 4 × 5 × 6 = 720
(ii)5! = 1 × 2 × 3 × 4 x 5 = 120
As 2! = 1 × 2 = 2
Therefore,5 ! – 2 ! = 120-2 = 118.
Thanks
i)6! = 1 × 2 × 3 × 4 × 5 × 6 = 720
(ii)5! = 1 × 2 × 3 × 4 x 5 = 120
As 2! = 1 × 2 = 2
Therefore,5 ! – 2 ! = 120-2 = 118.
Thanks
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