Prove that the vectors A = 2i - 3j + k and B = i+ j+ k are

mùtually perpendicular

mùtually perpendicular

mùtually perpendicular

Asked
1 year ago

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**Explanation:**

A • B = (2i - 3j + k) • (i + j + k)

= (2)(1) + (- 3)(1) + (1)(1)

= 0 = AB cos θ

∴ cos θ = 0 (as A ≠ 0,B ≠ 0)

or θ = 90°

or the vectors** A** and **B** are mutually perpendicular.

__-TheUnknown____Scientist__

**Answer:**

theta = 90°

**Explanation:**

hope it's helpful

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