Identities
(Reciprocal Identities)
What is Cot of theta?
1/tan of theta
What is the X and Y coordinates at 90 degrees?
(0,1)
What is cos?
A/H
If the graph is folded over the Y-axis is it a function?
Yes
If you have X>2 is the circle closed or open?
Open
(Ratio Identities)
what is sin of theta/cos of theta?
Tan of theta
What quadrant is 135 degrees located in?
2nd
6
How do you find out if a graph is a function or not?
The line test
How would you put (-1,5) in inequality notations?
-1<X<5
(Negative Identities)
What is Csc(-theta)?
Is it even or odd?
-Csc of theta
Odd
Is the X or Y negative in the 4th quadrant?
Y
If you have sin of theta= 3/7 what does Cot of theta equal?
2(square root) of 10/3
What is the domain of y=3x+1?
All real numbers.
How would you put -3<X<3 in interval notation?
(-3,3)
(Pythagorean Identities)
what is Sin2 of theta+cos2 of theta?
1
Where is 7(pie)/6 located?
3rd quadrant
What is the reciprocal of Sin(O/H)?
Csc(H/O)
What is the domain of Y=X2/x2-2x?
X can not equal 0,2
How is (of infinity, 2) written?
x>2
(Co-function Identities)
What is Cos of theta?
Sin(90 degrees - theta)
Or
Sin(Pie/2 - Theta)
If you have the square root of 2/2 over 2/ square root of 2 what do you get?
Square root of 2
Is the Hyp of a triangle is 13 and the Adj side is 5 what is sin of theta equal to?
5/13
How is X is less than or equal to 1/2 written in a function?
square root of 1-2x
Does (7, infinity) go left or right?
Right