plz give the answer
if u want 15 points
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it's 90
because resultant is equal to
C = √a^2 + b^2 + 2 a.b
c = √c^2 + 2 a.b
c^2 = c^2 + 2a.b
a.b = 0
so.90
because resultant is equal to
C = √a^2 + b^2 + 2 a.b
c = √c^2 + 2 a.b
c^2 = c^2 + 2a.b
a.b = 0
so.90
farhu25:
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