CUET Mathematics - If is the angle between two unit vectors a and b then |a-b| = | PYQs + Solutions

CUET Mathematics 2025 30 May Shift 2

Algebra

Medium

core

$\sin\frac{\theta}{2}$

$2\sin\frac{\theta}{2}$

$\cos\frac{\theta}{2}$

$2\cos\frac{\theta}{2}$

✅ Correct Option: 2

Related questions:

22 May Shift 1

Which of the following statements is/are true?

(A) The vector sum of the three sides of a triangle in order is $\vec{0}$

(B) The magnitude $(r)$ , direction ratios $(a, b, c)$ and direction cosines $(l, m, n)$ of any vector $\vec{r} = a\hat{i} + b\hat{j} + c\hat{k}$ are related as $l = \frac{a}{r}, m = \frac{b}{r}, n = \frac{c}{r}$

(C) If θ is the angle between two vectors $\vec{a}$ and $\vec{b}$ , then their cross product is given as $\vec{a} \times \vec{b} = |\vec{a}||\vec{b}|\sin \theta$

(D) The cross product of two vectors is commutative

Choose the correct answer from the options given below:

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If A (3, 2), B (1, -1) and C (2, 1) are three vertices of a parallelograms ABCD, then its area (in sq.units) is equal to

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The vector equation of the line passing through points $A(3,4,-7)$ and $B(1,-1,6)$ is

CUET Mathematics 2025 30 May Shift 2 PYQs

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