If la+bl=Icl and a²+b²?=c²?, find the angle between a and b.
Answers
Answered by
1
Answer:
angle between a and b. = 90
Explanation:
la+bl=Icl
la+bl. la+bl = Icl .lcl
a^2 + b^2 + 2a.b = c^2
we know that , a²+b²?=c²
so ,
2a.b = 0
ab = 0
ab cosФ =0
ab cos 90 =
therefore , Ф = 90
Similar questions