Q4 of 140 Page 267

If , find the value of x.

Given Equation :



To Find : Value of x.


Formula :


By given equation,




By using the above formula we can write,




Cancelling (8!) from both the sides,


∴x = 64


Conclusion : Value of x is 64.


More from this chapter

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2

Prove that LCM {6!, 7!, 8!} = 8!

 3

Prove that .

 5

Write the following products in factorial notation:

(i) 6 × 7 × 8 × 9 × 10 × 11 × 12


(ii) 3 × 6 × 9 × 12 × 15


 6

Which of the following are true of false?

(i) (2 + 3) ! = 2 ! + 3!


(ii) (2 × 3)! = (2!) × (3!)