Cosine is co added onto sine. Basically, cosine is the sine function moved over 90degrees or pi/2 (pi/2 on a unit circle is 90 degrees)
Sin(x)=cos(x+90) <--degrees
Sin(x)=cos(x+pi/2) <--radians
The above two equations for converting them is called a cofunction identity. There's many more identities to convert sines, cosines, tangents, cosecantes, secantes, and cotangents between each other. This is taught to you in PreCalculus.
Answer:
not sure
Step-by-step explanation:
Answer:
4,1
Step-by-step explanation:
(x-4)(x-1)
x=4 or x=1
The answer is 1 hr 28 min. picture included for work. there are other ways to solve this
Answer:
9
Step-by-step explanation:
8N=72
N=9