Sine
Find the magnitude of vector a=<2,5>.
sqrt(29)
If a=<4,-2> and b=<3,7>, find 2a-3b.
<-1,-25>
If a = 12, B= 27 degrees, and b = 15, find A to the nearest degree using the Law of Sines.
21 degrees
A football is thrown at 45 ft/sec at an angle of 50 degrees. Find the horizontal and vertical components. Round to the nearest tenth.
<28.9,34.5>
Find the unit vector in the opposite direction of <7,-2>.
<-7/sqrt(53),2/sqrt(53)>
Find the magnitude of the resultant to the nearest tenth.
||a||=50lbs, ||b||=65lbs, the angle between the two vectors is 75 degrees
91.7 lbs