Value of (986³ − 742³)/(986 × 986 + 986 × 742 + 742 × 742) is :(986 × 986 × 986 − 742 × 742 × 742)/(986 × 986 + 986 × 742 + 742 × 742) का मान है :
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Correct answer: D. 244
Explanation
Using a³ − b³ = (a − b)(a² + ab + b²), the fraction equals a − b = 986 − 742 = 244.a³ − b³ = (a − b)(a² + ab + b²) के प्रयोग से भिन्न = a − b = 986 − 742 = 244।More Mathematics & Numerical Ability questions
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