Physics, asked by ss3633449, 1 year ago

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Answered by Anonymous
6
Heya!!

To find x let's calculate it's dot product.

A . B = A B Cos ©

Where © is angle between A and B

© = 90° Given.

Cos 90 = 0

______________________________

=>

A . B = 0

=>

8 + 2x + 2 = 0

=>

2x = -10

=>

x = -5

So, value of x is -5

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