Question

If A = 3i - j - 4k, B=-2i +4j - 3k, C=i+2j-k. Find the magnitude of A +B+C vector​

Answer 1

Answer:

√26 +√20+√6

Explanation:

magnitude of a= √3²+(-1)²+(-4)²=√26

b=√(-2)²+(4)²+(-3)²=√29

c=√(1)²+2²(-1)²=√6

a+b+c=√26+√29+√6

Answer 2

The magnitude of A +B+C vector​ is $\sqrt{93}$.

Explanation:

Vector A, 3i-j-4k

Vector B, -2i+4j-3k

Vector C, i+2j-k

Considering A+B+C as :

$A+B+C=3i-j-4k+-2i+4j-3k+i+2j-k\\\\A+B+C=2i+5j-8k$

The magnitude of A+B+C is :

$|A+B+C|=\sqrt{2^2+5^2+(-8)} \\\\|A+B+C|=\sqrt{93}$

So, the magnitude of A +B+C vector​ is $\sqrt{93}$.

Learn more,

Vectors

https://brainly.in/question/4979036