Question

प्रश्न-13
यदि abc
, मात्रक सदिश इस प्रकार है कि a+b+c=0, तो
a.b+b.c+ca का मान ज्ञात कीजिए।
If a,b,c are unit vectors such that a+b+c = 0, then find the
value of a.b+b.c+c.a.
NM-45B+​

Answer 1

Answer:

Good job you can do it jajaj