Physics, asked by ccbhedke, 1 year ago

please solve it...

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Answered by Karthiksharan

I hope this helps to you goodluck ....

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Karthiksharan: Was the fault on handwriting?

ccbhedke: pic...!

ccbhedke: but who has reported?

Karthiksharan: Ok you wanted the pic to be upright?

Karthiksharan: No idea

Karthiksharan: Dit product means the same direction (I or j or k ) has to be multiplied , for example , in two vectors a and b , the 'i' of vector a has to be multiplied with 'i' of vector b , then put + sign and do the same thing for 'j' and 'k' also

Karthiksharan: Dot *

Karthiksharan: here 'i' of vector a US the value before 'i'

Karthiksharan: here 'i' of vector a means the number present before 'i'

Karthiksharan: If u don't get me , its ok☺

Answered by MarilynEvans

$\mathbb{\purple{\huge{Heya\:Walkers!!}}}$

$\textbf{\bold{\underline{Answer}}}$

$= - 17i - 19j - 5k$

$\textbf{\bold{\underline{Step\:by\:step\:explaination}}}$

$The two vectors are,$

a' = (3i-4j+5k) and b' = (-2i+j+3k)

$So, the required scalar product is,$

= a' × b'

= (3i-4j+5k) × (-2i+j+3k)

= - 6 - 4 + 15

= 5

$And the required vector product is,$

...| i j k l

| 3 (-4) 5 |

...| (-2) 1 3 |

= (-12-5)i - (9+10)j + (3-8)k

$= - 17i - 19j - 5k$

Thanks......!

With♥️

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