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Addition and Subtraction of Angles

a⃗+b⃗+c⃗=0⃗ s...

Question

$\to a + \to b + \to c = \to 0$ such that $| \to a | = 3, | \to b | = 5$ and $| \to c | = 7$ .
What is the angle between $\to a$ and $\to b$ ?

A

\frac{π}{6}

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B

\frac{π}{4}

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C

\frac{π}{3}

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D

\frac{π}{2}

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Solution

The correct option is C $\frac{π}{3}$

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\to A

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, then the angle between

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Addition and Subtraction of Angles

Standard VII Mathematics

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