Answer:
True
Step-by-step explanation:
Answers:
L = 4
M = -3
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Explanation:
On the left side, the number 20-12i is in the form a+bi where a = 20 and b = -12
On the right side, 5L+(4M)i is in the form a+bi where a = 5L and b = 4M
Equating the real parts a = 20 and a = 5L has us get
5L = 20
5L/5 = 20/5
L = 4
Do the same with the imaginary parts as well
b = -12
b = 4M
4M = -12
4M/4 = -12/4
M = -3
Put -3 where x is in the function statement, then do the arithmetic.
... f(-3) = |-3 - 2| = |-5| = 5
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The absolute value function changes the sign to positive if it is negative.
Answer:
Below.
Step-by-step explanation:
12. That is a semicircle
The central angle is 180 degrees.
You are tackling a trigonometry question here. I recommend remembering the functions and drawing the triangle out.