Important Formulas Flashcards
(29 cards)
what is the formula that goes with .866?
square root of 3/ 2
what is the trigonometric functions that relate to (x,y)?
(cos,sin)
what fraction goes with .577?
square root of 3/ 3
what fraction goes with .707?
square root of 2/2
what is the fraction that goes with 1.73?
square root of 3
what is tan theta also equal to?
sin/cos
deg>radians formula?
pie/180
rad>degrees formula?
180/pie
what does the theta stand for in theta = s/r?
central angle (radians)
what does s equal in theta =s/r?
intercepted arc
what does r = in the formula theta =s/r
radius
where is theta in the bow tie angles diagram
always at the origin
sin^2 theta + cos^2theta =?
1
cos^2 theta equals?
1-sin^2 theta
sin^2 theta equals?
1-cos^2theta
tan^2 theta +1 equals?
sec^2theta
cot^2 theta + 1 equals?
csc^2 theta
y=asinx or y=acosx what does |a| =?
amplitude
y=asinbx what does b=?
frequency
y=asinbx what is the period formula?
2pie/b
arithmetic formula?
a sub n =asub 1 +(n-1) a
what is the geometric formula?
asub n =asub1 r^n-1
when you have a fractional exponent what is the formula
exponent / index
what is the formula of a circle?
(x-h)^2 + (y-k) ^2 =r^2
