

MCQOPTIONS
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1. |
If \(\sqrt {10 - 2\sqrt {21} } + \sqrt {8 + 2\sqrt {15} } = \sqrt a + \sqrt b ,\) where a and b are positive integers, then the value of √(ab) is closet to: |
A. | 4.6 |
B. | 5.9 |
C. | 6.8 |
D. | 7.2 |
Answer» C. 6.8 | |