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Grade: 10

                        

Pls solve q 18.....................................................

4 years ago

Answers : (1)

Mudit
67 Points
							
The result of vectors make an angle of 90 withthe OA vector
tan90 is not defined. and direction of resultant vector isgiven by tanx=BSn theta/A+BCos theta
Hence A+BCos theta=0
           4+6Cos theta=0
                       theat=Cos-1(-2/3)
Feelfree toaskany doubt and if u find it helpful plz approve my answer.
4 years ago
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