Answer:
6.5
Step-by-step explanation:
6.5+(3.5*2)-7/3
6.5+(7-7)/3
6.5+0/3
6.5+0
6.5
Answer:
I’m not quite sure sorry..
Step-by-step explanation:
Answer:
I graphed it in the pic below
Step-by-step explanation:
The first one is in green and the second in red
+4 and +6 is where the line intercepts the y axis
-4x and -2x are the slopes.
Answer:
0, π, 7π/6, 11π/6 on the interval 0 ≤ ø <2π.
Step-by-step explanation:
sinø + 1 = cos2ø
Use the identity cos 2o = 1 - 2 sin^2 o:
sin o + 1 = 1 - 2 sin^2 o
2sin^2 o + sin o + 1 - 1 = 0
2 sin^2 o + sin o = 0
sin o (2 sin 0 + 1) = 0
Therefore sin o = 0 or sin o = -1/2.
For sin o = 0 , o = 0, π radians.
For sin o = - 1/2, o = 7π/6, 11π/6 radians.