Answer:
A milk shake is 2 dollars, a burger is 3 dollars.
Step-by-step explanation:
Answer:
ok this is better
Step-by-step explanation:
1 A
2 D
3 B
4 C
5 A
6 C
7 B
8 D
9 A
10 C
11 B
12 D
13 A
14 A
15 D
16 B
17 D
18 C
19 D
20 A
22 B
208 divide by 8
The right one on the bottom
Recall some identities:
tan(x) = sin(x) / cos(x)
cos(x + y) = cos(x) cos(y) - sin(x) sin(y)
cos(x - y) = cos(x) cos(y) + sin(x) sin(y)
sin(x - y) = sin(x) cos(y) - cos(x) sin(y)
This means we have
• cos²(90° - x) = [cos(90°) cos(x) + sin(90°) sin(x)]²
… = sin²(x)
• tan(180° - x) = sin(180° - x) / cos(180° - x)
… = [sin(180°) cos(x) - cos(180°) sin(x)] / [cos(180°) cos(x) + sin(180°) sin(x)]
… = sin(x) / (-cos(x))
… = -tan(x)
(and we also get sin(180° - x) = sin(x))
• cos(180° + x) = cos(180°) cos(x) - sin(180°) sin(x)
… = -cos(x)
So, the given expression reduces to
sin²(x) (-tan(x)) (-cos(x)) / sin(x) = sin²(x)
since tan(x) and cos(x)/sin(x) = 1/tan(x) will cancel.
I am guessing it is b! because BG and BA are sides, and BAU and BGN are angles.
