If a = 2^(1/3) + 2^(-1/3), prove that 2a³ - 6a - 5... - Quantitative Aptitude for Bank & SSC Exams | Mocknut | Mocknut

Quantitative Aptitude • Surds and Indices

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If a = 2^(1/3) + 2^(-1/3), prove that 2a³ - 6a - 5 = 0. Find the value of a³ - 3a

A

2

B

2.5

C

3

D

3.5

Question Details

Section: Quantitative Aptitude

Sub-section: Surds and Indices

Category: quantitative

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