Question

1a)

Complete the following for each pair of vectors. Do not round any intermediate computations. Round your answers to the nearest degree. 1. Let S = -9i+6j and t=8i + 7j. 2. Let u = 4i - j and w= - 8i+2j. (a) Find the angle between S and t. (a) Find the angle between U and W. o o 0 a (b) Determine whether S and t are parallel, orthogonal, or neither. (b) Determine whether U and W are parallel, orthogonal, or neither. ООО parallel orthogonal neither ООО parallel orthogonal neither

1b)

1c)

Answer 1

AB=3.52 8895 me A B = 3.5 mi Hence ships are 3.5 me away from each other 1 (c) a Given; b=19 E "C C= 24 B=33° law sine, using of lie 드 Sinc SinB cx SinB sin() = 243 in 33) 19 C = 43.5°
Hence we get;

1a) 1a) Angle=105°, b) neither

2) a) Angle=180°, b) parallel

1b) ships are 3.5 mi away from each other.

1c) C=43.5°, A=103.5°, a=33.9