Question

answer Q2 with laws of exponent.

Answer 1

Answer:

1) n is known as variable

2) One tenth of the previous number.

3) 1/3^2

Step-by-step explanation:

Any exponent which does not have a fixed value is a variable.

Now lets take the number 10^3 = 1000

10^3 - 1 exponent = 10^2 = 100

100/1000 = 1/10

Therefore the exponent when decreased by 1, the number becomes 1/10 of the original number.

Hope it helps

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a^-2 = 1/a^2

Answer 2

Answer:

(a) One-tenth of the previous number.

Step-by-step explanation:

Let the initial number be 10².

Given that exponent is decreased by 1.

⇒ 10²⁻¹ = 10¹ = 10.

So, the new number is 10.

Now,

⇒ 10/10² = 1/10.

Hope it helps!