If -a - - -26 -b - - 7 and -a-b - - 35- find a-b -

We have, #10; #10; | a #10;|=√(26) #10; #10; | b|=7 #10; #10; | a×b #10;|=35 #10; #10; #160; #10; #10;Since, #10; # ...

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Applications of Dot Product

If |a | = √...

Question

If $| \to a | = \sqrt{26}, | \to b | = 7$ and $| \to a \times \to b | = 35,$ find $\to a \cdot \to b .$

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If |\vec{a}| = \sqrt{26}, |\vec{b}| = 7 and |\vec{a} \times \vec{b}| = 35, find \vec{a} . \vec{b} .

| \to a | = \sqrt{26}, ∣ ∣ \to b ∣ ∣ = \sqrt{7},

∣ ∣ \to a \times \to b ∣ ∣ = 35,

\to a . \to b .

If $| \to a | = 2, | \to b | = 7$ and $\to a \times \to b = 3^i + 2^j + 6^k,$ then $\to a \cdot \to b =$

[7, - \sqrt{35}] ⋃ [5, \sqrt{35}] = [a, b]

| \to A | = 2, | \to B | = 5

| \to A \times \to B | = 8

A

B

\to A . \to B

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