Trig Midterm

sin²x + cos²x = 1
A. Reciprocal Identity
B. Pythagorean Identity
C. The Sum and Difference Identity
D. Half-Angle Identity
E. Double-Angle Identity

1 + cot²x = csc²x
a.Pythagorean Identity
b.Double-Angle Identity
d.c.Reciprocal Identity
e.Half-Angle Identity
f.The Sum and Difference Identity

1 + tan²x = sec²x
a.Pythagorean Identity
b.Double-Angle Identity
c.Reciprocal Identity
d.Half-Angle Identity
e.The Sum and Difference Identity

sin2x = 2sinx cosx
A. Half-Angle Identity
B. Double-Angle Identity
C. Pythagorean Identity
D. The Sum and Difference Identity
E. Reciprocal Identity

tan2x = (2tan x)/( 1- tan²x)
A. Pythagorean Identity
B. Half-Angle Identity
C. The Sum and Difference Identity
D. Double-Angle Identity
E. Reciprocal Identity

Ordered Pair

Linear equation in two variables

Pythagorean Theorem

a²+b²=c²

Distance Formula

Midpoint Formula

The midpoint_______________.

The fixed distance is the ___________.

The given point is the ___________.

The distance formula can be used to write and equation for a circurle with center______ and radius _____.