Question

Find the compound ratio of the duplicate ratio of a-b : a+b, the reciprocal ratio of (a-b)² : (a+b)² and sub-duplicate ratio of (a-b)² : (a+b)².​

Answer 1

Solution ;-

C.R = (a-b)²/(a+b)² × (a+b)²/(a-b)²×(a-b)/(a+b)

= (a - b)/(a+b)

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Answer 2

Answer:

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see the attachment

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