Question

$tell \: the \: answer \: please$
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Answer 1

[1/2]⁻¹ = 2

[1/3]⁻¹ = 3

2-3 = -1

[-1]⁻¹ = -1

Please don't confuse I did individually every term for understanding purpose

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Answer 2

Answer:

{(1/2)-¹ -(1/3)-¹}-¹

={2-3}-¹

={-1}-¹

=-1/1

= -1