Quantitative Aptitude :: Square Root and Cube Root - Discussion

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Explanation:
\(\sqrt{4a2 - 4a + 1} + 3a = \sqrt{(1)^2 + (2a)^2 - 2 x 1 \times 2a }+ 3a\)

= \(\sqrt{(1 - 2a)^2} + 3a\)

= (1 - 2a) + 3a

= (1 + a)

= (1 + 0.1039)

= 1.1039