Find two unit vectors that make an angle of 60 degrees with v<4,3>?

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asked Jan 1, 2018 150k views

1 Answer

Papachan · Answer 1 · 2018-01-07T05:14:30+0000

, 52=±31−u22−−−−−√+4u2 36(1−u22)=25−80u2+64u22 100u22−80u2−11=0 u2=4±33√10≈−0.120or0.920 ∴u1≈−0.393or0.993 i.e. the solutions are⟨−0.393,0.920⟩ and ⟨0.993,−0.120⟩

Find two unit vectors that make an angle of 60 degrees with v<4,3>?

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