Question

Please answer this.....And if possible please mention all the formula (imp ones) of the chapter vector like what's the formula for dot product

Answer 1

I hope ...

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...
.it's help full.......
see....[^_^]

Answer 2

Howdy!!

your answer is ----

Given, vectorA = 3i+2j
& vector B = i-2j+3k

now, A+B = 3i+2j+i-2j+3k = 4i+3k

so, magnitude of A+B is

$\sqrt{ {3}^{2} + {4}^{2} } = \sqrt{9 + 16} = \sqrt{25} \div = 5$
so, magnitude of A+B is 5

now, A-B = 3i+2j-i+2j-3k = 2i+4j-3k

now, magnitude of A-B is
$\sqrt{ {2}^{2} + { (- 3)}^{2} + {4}^{2} } = \sqrt{4 + 9 + 16} = \sqrt{29}$
so, magnitude of A-B is √29


→ formula of dog structure is --
in above pic


hope it help you