JEEMaths

Let \(\vec{a}=4\hat{i}+5\hat{j}−\hat{k}\), \(\vec{b}=\hat{i}−4\hat{j}+5\hat{k}\) and \(\vec{c}=3\hat{i}+\hat{j}−\hat{k}.…

Q1
PYQ

Let \(\vec{a}=4\hat{i}+5\hat{j}−\hat{k}\), \(\vec{b}=\hat{i}−4\hat{j}+5\hat{k}\) and \(\vec{c}=3\hat{i}+\hat{j}−\hat{k}.\) Let \(\vec{d}\) be a vector which is perpendicular to both \(\vec{a}\) and \(\vec{b}\) and \(\vec{c}⋅\vec{d}=12.\) Then \((-\hat{\mathrm{i}}+\hat{\mathrm{j}}-\hat{\mathrm{k}}).(\vec{\mathrm{c}}\times \vec{\mathrm{d}})\) is equal to

[JEE Main 2023, 10 Apr (Shift 2)]

a

48

b

42

c

44

d

24

🔒
Answer & explanation — PYQ Pass

Options are free to see. Unlock the correct answer and full explanation with Pass.

Unlock · ₹149

Practice more JEE Maths PYQs

See every question on Vector Algebra, or browse the full JEE question bank.

See all questions on Vector Algebra →