Question

2x³ - 6x + 5 is an increasing function, if ____________.

पर्याय

• 0 < x < 1

• -1 < x < 1

• x < -1 or x > 1

• -1 < x < `-1/2`

Answer 1

2x³ - 6x + 5 is an increasing function, if x < -1 or x > 1.