The value of i * (k x j) + j * (i x k) + k * (j x i) is Option 1: 0 Option 2: 3 Option 3: -1 Option 4: -3

The answer is '-3'. View full solution:

CUET Mathematics - The value of i * (k x j) + j * (i x k) + k * (j x i) is | PYQs + Solutions

CUET Mathematics 2022 6 Aug Shift 2

Algebra

Easy

$0$

$3$

$-1$

$-3$

✅ Correct Option: 4

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The angle between two lines whose direction ratios are propotional to $1,1,-2$ and $(\sqrt{3}-1),(-\sqrt{3}-1),-4$ is :

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The position vector of a point which divides the line joining the points with position vectors $(\vec{a} - 2\vec{b})$ and $(2\vec{a} + \vec{b})$ externally in the ratio 2:1, is

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Match List-I with List-II

List-I	List-II
(A) Angle between $\vec{i} - \vec{j}$ and $\vec{j} + \vec{k}$	(I) 0
(B) Angle between $2\vec{j} - \vec{k}$ and $\vec{j} + 2\vec{k}$	(II) $\frac{2\pi}{3}$
(C) Angle between $\vec{i} + 2\vec{j}$ and $5\vec{i} + 10\vec{j}$	(III) $\frac{\pi}{6}$
(D) Angle between $\sqrt{3}\vec{i} + \vec{j}$ and $\vec{i}$	(IV) $\frac{\pi}{2}$

Choose the correct answer from the options given below:

CUET Mathematics 2022 6 Aug Shift 2 PYQs

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