Q If a→=j^+3k^, b→=-j^+3k^ and c→=23k^ form a triangle, then find out the internal angle of the triangle - Maths - Vector Algebra

Question

Q I f   a → = j ^ + 3 k ^ ,   b → = - j ^ + 3
k ^   a n d   c → = 2 3 k ^ form a triangle, then
find out the internal angle of the triangle between a →
  a n d   b → ?

Neha Sethi · Accepted Answer

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Q. I f a → = j ^ + 3 k ^ , b → = - j ^ + 3 k ^ a n d c → = 2 3 k ^ form a triangle, then find out the internal angle of the triangle between a → a n d b → ?

Q. $I f \vec{a} = \hat{j} + \sqrt{3} \hat{k}, \vec{b} = - \hat{j} + \sqrt{3} \hat{k} a n d \vec{c} = 2 \sqrt{3} \hat{k}$ form a triangle, then find out the internal angle of the triangle between $\vec{a} a n d \vec{b}$ ?