Use squares, square roots and reciprocals tables only to evaluate; 3 + 4 √(42.15) (3.152)2
√(42.15)=6.49233.1522 = 9.9351 3 + 4 6.4923 9.9351 3 x 0.1540 + 4 x 0.10070.462 + 0.4028= 0.8648
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