Two vectors having magnitude 12 and 13 are inclined
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Explanation:
R = √[a2 + b2 + 2ab cos(θ)]
R = √[122 + 132 + 2(12)(13) cos(45)]
= √[144 + 169 + 312 (1/√2)]
= √(313 + 220.65)
= √(533.65)
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