Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Need solution for RD sharma maths class 12 chapter 24 Vector or cross product exercise Fill in the blanks question 9

Need solution for RD sharma maths class 12 chapter 24 Vector or cross product exercise Fill in the blanks question 9

Answers (1)

best_answer

\therefore \theta =\frac{\pi}{4} or \frac{3\pi}{4}

Hint: Use formula

\left | \vec{a} \times \vec{b} \right |=\left | \vec{a}\right |\left | \vec{b} \right | \sin \theta

Given:

\left | \vec{a} \times \vec{b} \right |=\sqrt{2}

We know that

\left | \vec{a} \times \vec{b} \right |=\left | \vec{a}\right |\left | \vec{b} \right | \sin \theta\\ \sqrt{2}=(1)(2) \sin \theta \\ \sin \theta=\frac{\sqrt{2}}{2}\\ \sin \theta=\frac{\sqrt{2}}{\sqrt{2} \times \sqrt{2}}\\

\therefore \theta =\frac{\pi}{4} or \frac{3\pi}{4}

Posted by

Info Expert 29

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

CBSE 12th result 2025 sees more in compartment, JNVs on top, perfect-scorers in minor subjects
anam-khan

Low score in CBSE results? Courses, career options after 12th open to you
anam-khan

CBSE class 10, 12 results: West Bengal CM Mamata Banerjee congratulates successful candidates

Latest Question