OnlineCBT Logo OnlineCBT

Mathematics · JEE | DETERMINANTS

हिन्दी

If \( A \) and \( B \) are square matrices of order 3 such that \( |A| = 2 \) and \( |B| = 3 \), then \( |3AB| \) is:

  1. A
    54
  2. B
    162
  3. C
    18
  4. D
    486
View Answer & Solution

Correct answer · Option B

162

Explanation

Using scalar property \( |kX| = k^n |X| \), \( |3AB| = 3^3 |A||B| = 27 \times 2 \times 3 = 162 \).
Address Contact

+91 9694780911

E-mail

onlinecbtportal@gmail.com

Helpline Number

+91 9694780911


Click To Download
Get it on Google Play

ऐप डाउनलोड करने
के लिए Google Play पर
उपलब्ध है

WhatsApp Chat