kjevans200169
kjevans200169 kjevans200169
  • 21-05-2019
  • Mathematics
contestada

Find u•v when u= 12i+4j and v=15i-5j

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prashanty345p1uxhf
prashanty345p1uxhf prashanty345p1uxhf
  • 21-05-2019

u.v= (12i+4j).(15i-5j)

=180-20

=160 ans..

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