If F1 and F2 are two vectors of equal magnitude F such that F1.F2 = F1*F2, F1 +F2 =
. Please give explanation .
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this is the required explanation and dont forget to mark me as brainlist
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arunpatilpnc69:
Which one should I choose as correct
mine is correct
angle between them is 45
Answered by
14
this is the required answer
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ok there mistake in my answer
why not 135degree
wait
they both perpendicular to each other
no angle between them is 0
why
see f1dotf2=f1×f2 so costheta is 0
dot product always gives cos theta and scalar product give sin theta somif you put zero degree so given condition becomes wrong
f1dotf2 equals to f1f2costheta
and f1*f2 equals to f1f2sintheta
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