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Question

Find sub-duplicate ratio of :

(i) 9 : 16 (ii) (xy)4:(x+y)6

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Solution

left parenthesis i right parenthesis S u b minus d u p l i c a t e space r a t i o space o f space 9 colon 16 equals square root of 9 colon square root of 16 equals 3 colon 4 left parenthesis i i right parenthesis S u b minus d u p l i c a t e space r a t i o space o f space left parenthesis x minus y right parenthesis to the power of 4 colon left parenthesis x plus y right parenthesis to the power of 6 equals square root of left parenthesis x minus y right parenthesis to the power of 4 end root colon square root of left parenthesis x plus y right parenthesis to the power of 6 end root equals left parenthesis x minus y right parenthesis squared colon left parenthesis x plus y right parenthesis cubed


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Sub-duplicate Ratio
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