Let a = -i + 2j + 2k, b = 8i + 7j - 3k and c be a vector such tha… | JEE Main 2026 Mathematics PYQ

MCQMediumJEE Main 2026 · 21 January, Shift 1Cross Product

Let $\vec{a} = -\hat{i} + 2\hat{j} + 2\hat{k}$ , $\vec{b} = 8\hat{i} + 7\hat{j} - 3\hat{k}$ and $\vec{c}$ be a vector such that $\vec{a} \times \vec{c} = \vec{b}$ . If $\vec{c} \cdot (\hat{i}+\hat{j}+\hat{k}) = 4$ , then $|\vec{a}+\vec{c}|^2$ is equal to:

A
$33$
B
$35$
C
$27$
D
$30$

Answer & step-by-step solution

Practice more Cross Product questions

Get unlimited AI-adaptive practice, mastery tracking, and an AI tutor that explains every step - free to start.

Start free trial More on Cross Product

Answer & step-by-step solution

Practice more Cross Product questions

Related questions