Question

prove the following
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Answer 1

Answer:

so in frist (a+b) power -1 so it means first we will multiply a and b with -1 which is a power -1 and b power is -1 as well so now brackets are removed

so we get

A power -1 + B power -1 ×A power -1 +B power -1

next step

so we can't add -a to -b so A power -1 -A power -1 is A

B power -1 -B power -1 is B

and now A×B=AB

so hence proved

AB power -1 is answer