If $a, b, c$ are three vectors such that $∣ a ∣ = 5, ∣ ∣ b ∣ ∣ = 12$ and $∣ c ∣ = 13,$ and $a + b + c = O,$ find the value of $a \dot{b} + b \dot{c} + \cdot a$ .

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Benjamin Discussed

a, b, c

are three vectors such that

∣ a ∣ = 5, ∣ ∣ b ∣ ∣ = 12

and

∣ c ∣ = 13,

and

a + b + c = O,

find the value of

a \dot{b} + b \dot{c} + \cdot a

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Question Text

a, b, c

are three vectors such that

∣ a ∣ = 5, ∣ ∣ b ∣ ∣ = 12

and

∣ c ∣ = 13,

and

a + b + c = O,

find the value of

a \dot{b} + b \dot{c} + \cdot a

Filo tutor solution