Question

1. Evaluate
(i) 8!

(ii) 4! – 3!

Answer 1

(i) Consider 8!

We know that 8! = 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1

= 40320

(ii) Consider 4!-3!

4!-3! = (4 × 3!) – 3!

Above equation can be written as

= 3! (4-1)

= 3 × 2 × 1 × 3

= 18

Answer 2

Answer:

(1). 8! = 8*7*6*5*4*3*2*1

8!= 56*30*12*2

8!= 40320

(2.) 4!-3! = (4*3*2*1) - (3*2*1)

4!-3! =24-6 = 18. please mark me....