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If a + b = 19 and ab = 88 find the value of a3 + b3.1. 14832. 13563. 18464. 1843 |
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Answer» Correct Answer - Option 4 : 1843 Given: a + b = 19 ab = 88 Formula Used: a3 + b3 = (a + b)3 – 3ab(a + b) Calculation: substituting the given values in the formula a3 + b3 = (19)3 – 3 × 88(19) a3 + b3 = 6859 - 5016 = 1843 ∴ The value of a3 + b3 is 1843 |
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