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sin2x + cos2x = 1
A. Pythagorean Identity
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1 + cot2x = csc2x
a.Pythagorean Identity
b.Double-Angle Identity
d.c.Reciprocal Identity
e.Half-Angle Identity
f.The Sum and Difference Identity
a.Pythagorean Identity
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1 + tan2x = sec2x
a.Pythagorean Identity
b.Double-Angle Identity
c.Reciprocal Identity
d.Half-Angle Identity
e.The Sum and Difference Identity
a.Pythagorean Identity
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sin2x = 2sinx cosx
E. Double-Angle Identity
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tan2x = (2tan x)/( 1- tan2x)
A. Double-Angle Identity
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Ordered Pair
If x and y are real numbers, then (x,y) is an ordered pair of real numbers.
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Linear equation in two variables
3x-7y=19 is the standard form
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Pythagorean Theorem
in a right triangle the sum of the lengths of the legs in equal to the square of the length of the hypotenuse.
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a2+b2=c2
Pythagorean Theorem
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Distance Formula
The distance d between the points (x,y) and (x2,y2)
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Midpoint Formula
/frac{x1+x2}{2}, /frac{y1+y2}{2}
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The midpoint_______________.
of the line segment with endpoints (x1,y1) and (x2,y2)
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The fixed distance is the ___________.
Radius
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The given point is the ___________.
Center
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The distance formula can be used to write and equation for a circurle with center______ and radius _____.
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