Question

If a = 2^(1/3) - 2^ (-1/3), what will be the value of 2a^3+6a-3?​

Answer 1

Answer:

1. hope this helps you

Answer 2

a=2^(1/3)-2^(-1/3)

a= 2^(1/3)-1/2(1/3)

a=2^2/3-1 divided by 2 (1/3)

or,2^(1/3).a=2 (2/3)-1

or,(2^1/3.a)^3=(2^2/3-1)^3

or,2a^3=(2^ 2/3)^3-1^3-3.^(2/3).1 (2^2/3)-1

or,2a^3=2^2-1-3.2^2/3.2^1/3.a

or,2a^3=4-1-3.2.a

or,2a^3=3-6a

or,2a^3+6a-3=0

the value of 2a^3+6a-3 is 0

it is Answer of your question