CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
6
You visited us 6 times! Enjoying our articles? Unlock Full Access!
Question

Prove that [abc+d]=[abc]+[abd]

Open in App
Solution

[abc+d]=[abc]+[abd]
If a=x1^i+y1^j+z1^k
b=x2^i+y2^j+z2^k
c=x3^i+y3^j+z3^k
d=x4^i+y4^j+z4^k
[ab.c+d]=∣ ∣ ∣x1y1z1x2y2z2x3+x4y3+y4z3+z4∣ ∣ ∣
=∣ ∣ ∣x1y1z1x2y2z2x3y3z3∣ ∣ ∣+∣ ∣ ∣x1y1z1x2y2z2x4y4z4∣ ∣ ∣ (properties of determinants)
=[abc]+[abd]

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Vector Addition
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon