Answer:
B) Sin^-1(-1) = 3pi/2 or 270°
D) Sin^-1(-1) = -pi/2 or -90°
Step-by-step explanation:
Sine function:
The sine function is -1 at 270º(-90º), which is 3pi/2 = -pi/2.
Inverse sine:
The input of the inverse sine function is a value, and the output are the angles which have the sine equal to the input.
Sin^-1(-1)
Angles for which the sine are -1, that is 3pi/2 or 270° and -pi/2 or -90°. Thus, options B and D are correct.
Answer:
66
Step-by-step explanation:
Replace t with 9 in the equation.

Simplify.


Rounded, it equals 66
Answer:
Hello! Your answer is BELOW
Step-by-step explanation:
The best answer to the question that is being stated above would be letter B. The graph of a function never has two different points with the same x-coordinate because the input value of each of the points is mapped to a single output value in the graph.
Hope I helped! Hope you make an 100%
-Amelia♥
Answer:
im gonna have to say C
Step-by-step explanation:
Answer:
because the graphs of the two equations overlap each other
Step-by-step explanation:
when two graphs have the same line, the line overlaps so it looks like only one line. therefore, the answer is
C) because the graphs of the two equations overlap each other.