A vector v⃗=⟨3,4⟩\vec{v} = \langle 3, 4 \ranglev=⟨3,4⟩ is rotated 90∘90^\circ90∘ counter-clockwise. What is the resulting vector?
⟨−4,3⟩\langle -4, 3 \rangle⟨−4,3⟩
⟨4,−3⟩\langle 4, -3 \rangle⟨4,−3⟩
⟨4,3⟩\langle 4, 3 \rangle⟨4,3⟩
⟨3,−4⟩\langle 3, -4 \rangle⟨3,−4⟩