Find the acute angle between the vectors and , correct to 1 decimal place.
Answer and explanation
Correct answer: B. 63.6 degrees
- Step 1: . Step 2. . Answer: 63.6 degrees. Why not the others: 26.4 degrees: That subtracts from 90 degrees without cause. 116.4 degrees: That is the obtuse angle between the lines; the question asks for the acute one. 73.6 degrees: That is 10 degrees too large.
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