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If a2 - \(\frac{20}{a}\) = 11, then find a (a + 1) (a + 2) (a + 3). |
120 490 815 840 |
840 |
a2 - \(\frac{20}{a}\) = 11 Here, put a = 4, it will satisfy the above eq. So, a (a + 1) (a + 2) (a + 3) = 4 (4 + 1) (4 + 2) (4 + 3) = 4 × 5 × 6 x 7 = 840 |
