﻿ A unit vector making an obtuse angle with x-axis and perpendicular to the plane containing the points  also makes an obtuse angle with : Kaysons Education

# A Unit Vector Making An Obtuse Angle With x-axis And Perpendicular To The Plane Containing The Points  also Makes An Obtuse Angle With

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## Question

### Solution

Correct option is

z-axis

Let the given points be AB and C respectively. The unit vectors perpendicular to the plane containing AB and C are given by

Since the required vector makes an obtuse angle with x-axis.

So, it is equal to

Clearly, it also makes an obtuse angle with z-axis.

#### SIMILAR QUESTIONS

Q1

The value of x for which the angle between  and  is obtuse and the angle between  and the z-axis is acute and less than π/6, are

Q2

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Q3

, then the angle between

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