Find the angle between these two vectors with sin and cos. a= (2, 3, -1) b= (1, -2. -3) I got 240...

Question

Question

Find the angle between these two vectors with sin and cos. a= (2, 3, -1) b= (1, -2. -3)

I got 240 degrees for cos and 60 degrees for sin

Went over this problem in class but my answers aren't matching. Thought I'd throw it on here before my exam. Thank you!

math calculus

Answer 1

Answer #1

If any confusion Please comment, I will help you,Thank you

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Answer 2

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