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NIELIT 2016 MAR Scientist C - Section A: 12

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Answer is C

Question is in the form of $a^{2}+2ab+b^{2}$. Here a = 11.98 and b = .02

Missing term in the expression 2ab = 2 * .02 * 11.98.

In order to make it as a perfect square =  2 * .02 = .04

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