See what we can offer to your school
"SimpleStudy just makes sense...”
Get the best plan for your school
10 cards from this deck
∣a∣=a12+a22|a| = \sqrt{a_1^2 + a_2^2}∣a∣=a12+a22
∣a∣=a12+a22+a32|a| = \sqrt{a_1^2 + a_2^2 + a_3^2}∣a∣=a12+a22+a32
θ=tan−1(a2/a1)\theta = \tan^{-1}(a_2/a_1)θ=tan−1(a2/a1)
The length or size of the vector.
θ=tan−1(2/3)≈33.7°\theta = \tan^{-1}(2/3) \approx 33.7°θ=tan−1(2/3)≈33.7°
Magnitude = 22+32=13\sqrt{2^2 + 3^2} = \sqrt{13}22+32=13
θ≈233.13°\theta \approx 233.13°θ≈233.13° in quadrant III, calculated by arctan.
Magnitude = (−2)2+(−4)2=20=25\sqrt{(-2)^2 + (-4)^2} = \sqrt{20} = 2\sqrt{5}(−2)2+(−4)2=20=25
Coordinates: (−1.5,2.598)(-1.5, 2.598)(−1.5,2.598) from (3cos120°,3sin120°)(3 \cos 120°, 3 \sin 120°)(3cos120°,3sin120°)
Magnitude and direction.
Select your subjects, and get access to A+ resources today.