→a and →b are two vectors such that |→a|=1,|→b|=4 and →a⋅� – InterviewSolution

1.	→a and →b are two vectors such that \|→a\|=1,\|→b\|=4 and →a⋅→b=2. If →c=(2→a×→b)−3→b, then the angle between →b and →c is
Answer» $\to a$ and $\to b$ are two vectors such that $\| \to a \| = 1, \| \to b \| = 4$ and $\to a \cdot \to b = 2$ . If $\to c = (2 \to a \times \to b) - 3 \to b$ , then the angle between $\to b$ and $\to c$ is

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