Question

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Answer 1

1 question answer is

Step-by-step explanation:

it's-1 as anything doesn't have any denominator it's denominator will be 1 as -will be same

Answer 2

Step-by-step explanation:

Solutions :-

1) Given number = -1

We know that

Reciprocal of a = 1/a

Reciprocal of -1

=> 1/-1

=> -1

Reciprocal of -1 is -1

2)

Given number = -3/4

We know that

Additive inverse of a = -a

Additive inverse of -3/4 is 3/4

Additive inverse of -3/4 = 3/4

3)

Given that

a^m × a^n

= a^(m+n)

a^m × a^n = a^(m+n)

4)

Given number = 0.00000000027

It can be written as

=> 27/100000000000

=> 27/10¹¹

On multiplying the numerator and the denominator with 10 then

=> (27/10¹¹)×(10/10)

=> (27×10)/(10¹¹×10)

=> (27/10)×(10/10¹¹)

=> 2.7 ×( 1/10¹⁰)

=> 2.7/10¹⁰

=> 2.7×10^-10

0.00000000027 = 2.7×10^-10

Used formulae:-

• Reciprocal of a = 1/a

• Additive inverse of a = -a

• a^m × a^n = a^(m+n)

• a^m/a^n = a^(m-n)