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Relevant question for: Ratio and proportion

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Ques no 14 x4+1x4 Atilde; #8212;x+1x

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(x4+1/x4) (x+1/x)

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Question : Prove that : Q Acirc; nbsp;-a2+b2+c22=2bc-a2+b2+c2 Acirc; nbsp;2bc+a2-b2-c2

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is 5,7 and 11 a prime triplet if yes why and if not why

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Solve this:

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Solve this:

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Solve this: 15 Divide he polynomial: a) Acirc; nbsp; Acirc; nbsp;(9x2 Acirc; nbsp;+ Acirc; nbsp;3x) Acirc; nbsp; Atild

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10 Factorise [Hint:- Use suitable identity]:- a) Acirc; nbsp;x4-100 Acirc; nbsp; Acirc; nbsp; Acirc; nbsp; Acirc; nbsp;

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Solve this: Q 9 Factorize a x2+6x+8 b p2-4p-12 c y2-7y+12

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Solve this: 8 Multiply: a) (2x=5)2(4y-5) b)(3x-6) (4x+5) c)(9+a) (15a-7)