If √9+n
= 1, then n=?

√x+9

a. 1

b. 3

c. 5

d. 9

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled

the answer is 13 cm