Q. 13

# Mark the correct

Here, angle between and is obtuse

So,

14x2 – 8x + x ≤ 0

14x2 – 7x ≤ 0

2x2 – x ≤ 0

x(2x – 1)≤ 0

or __________(1)

Now, angle between and Z-axis is acute

So,

x0 ___________(2)

From (1) and (2) .

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