Question

How to do 1/1.6×10^-19 ?
I'm not asking the answer of the question. I'm asking how to solve it.

Answer 1

Step-by-step explanation:

1/(1.6×10^-19)

We know that if we reciprocate a base with a negative exponent then it can be written in its positive exponential form.

For ex: 10^-2 can be written as 1/10^2.

Thus,

1/(1.6×10^-19) = 1/1.6 × 10^19

= 10/16 × 10^19

= 5/8 × 10^19

= 0.625 × 10^19

= 6.25 × 10^18