Question

>> write multiplicative inverse of 9 ² / 1/5-²

>> the population of a country is 15 crores approximately . represent in usual form and standard form

>> 99700000 IN STANDARD FORM

>> 2-³ = 1/2,to the power of x+1

Answer 1

Multiplicative inverse 1/9^2= 9^-2
5^2
1.5×10^8