Use the sine law. It will give you all angles
The answer would be B. supplementary means the angles add up to 180. so if you subtract 72 from 180, you get 108
Answer:
3√15/4
Step-by-step explanation:
sin x = 2/8
- from the trigonometric rule sin²x+cos²x = 1
- cos²x = 1-sin²x
sinx = 2/8
sin²x = (2/8)² = 2²/8² = 4/64
1- sin²x = 1-4/64 = 64 -4/64 = 60/64 = 15/16
cos x = √(15/16) = √15 /4
3 x cos x = 3 x √15/4 = 3√15/4
Answer:
No
Step-by-step explanation:
A 5x8 matrix 
represents a linear transformation between the vector space 
and 
. Remeber that the columns of generate the image of the linear transformation, which is a vector subspace of . Therefore, 
, which is the dimension of the the total space.
