Practicing Success
Practicing Success
CUET Preparation Today
The value of $\sqrt{6 - \sqrt{17 - 2\sqrt{72}}}$ is closest to: |
2.4 2.7 2.1 1.7 |
2.4 |
( a - b )2 = a2 + b2 - 2ab $\sqrt{6 - \sqrt{17 - 2\sqrt{72}}}$ = $\sqrt{6 - \sqrt{(\sqrt{9} - \sqrt{8})^2}}$ = $\sqrt{6 - \sqrt{(3 - \sqrt{8})^2}}$ = $\sqrt{6 - 3 + \sqrt{8}}$ = $\sqrt{3 + 2.82}$ = 2.4 |
