The y-intercept (where the line hits the y-axis) will move from (0, 1/2) to (0, -2)
Answer:
x = 12
Step-by-step explanation:
Answer:
r= 15
Step-by-step explanation:
Answer:
32
Step-by-step explanation:
Answer:
First, let's recall some usefull information:
- cot(x) = 1/tg(x) = cos(x)/sin(x)
- tan(x) = sin(x)/cos(x)
We also know that:
- cos(x - pi/2) = sin(x)
- sin(x - pi/2) = -cos(x)
Now we can use those relationships and get:
cot(x - pi/2) = cos(x - pi/2)/sin(x -pi/2) = sin(x)/-cos(x) = -tan(x)
So we have verified the identity, and explained step by step why the identity is true.
