Math, asked by manthangarg15, 8 months ago

please answer to this question ☝️

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Answers

Answered by sarthaknitinagarkar

1

Answer:

7+12-4√21-(7+12+4√21)/7-12

-8√21/-5

8/5*√21

so,

a=0

b=8/5 or 1.6

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