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OpenStudy (anonymous):
Find a ⋅ b. a = 10i + 9j, b = 4i + 3j
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OpenStudy (anonymous):
@Hero @hba
OpenStudy (anonymous):
in vector multiplicatoion you have to multiply i vector with i and j with j a.b=(10i+9j).(4i+3j) =>(10*4)+(9*3)=40+27=67 coz i.i=1 and j.j=1
OpenStudy (anonymous):
Thank you @zaibali.qasmi I really appreciate it! :D
OpenStudy (anonymous):
you are welcome...
OpenStudy (anonymous):
Do you think you could help me with one more if I post it?
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OpenStudy (anonymous):
It's just slightly different
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