Question

Choose the correct alternative :

If `int_0^"a" 3x^2*dx` = 8, then a = ?

Options

• 2

• 0

• `(8)/(3)`

• a

Answer 1

`int_0^"a" 3x^2*dx` = 8

∴ `3[x^3/3]_0^"a"` = 8
∴ a³ = 2³
∴ a = 2.