Math, asked by rohan379, 1 year ago

does anybody know answer to any of these?

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Answered by Siddharthakumarpanda
2
{(0.87)^3 + (0.13)^3 } /  (0.87)^2 -0.87*0.13 +(0.13)^2
let, 0.87 = a and  0.13= b
now,
      a^3 + b^3 / a^2 +b^2 -ab
     = (a+b)(a^2 + b^2 - ab) / a^2 + b^2 -ab
     = a+b
     = 0.87+0.13
     = 1
therefore it is verified that LHS= RHS

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