Question
Asked Dec 10, 2019
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Let →a=⟨2,5⟩a→=⟨2,5⟩ and →b=⟨0,k⟩b→=⟨0,k⟩.

Find k so that →aa→ and →bb→ will be orthogonal (form a 90 degree angle).

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Expert Answer

Step 1

For given two vectors, the condition for orthogonalit...

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a = 2i +5j b = 0i +k j a-b = \a||b|cos0 e|lcos% =0 a•b = a|bcos

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