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Neko [114]
3 years ago
12

Can someone help me out with this question bh step by step procedure? ​

Mathematics
2 answers:
babymother [125]3 years ago
5 0

Answer:

60°

Step-by-step explanation:

the angle Θ between vectors a and b is

cosΘ = \frac{a.b}{|a||b|} = \frac{\frac{15}{2} }{3(5)} = \frac{\frac{15}{2} }{15} = \frac{1}{2} , then

Θ = cos^{-1} ( \frac{1}{2} ) = 60°

mixas84 [53]3 years ago
5 0

Answer:

cos θ= 60°

Step-by-step explanation:

cos θ= a . b/।a। ।b।

=15/2/3×5

=15/30

=1/2

cos θ=cos60°

θ=60

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