Inverse Trig
cos^-1 (1/2)
pi / 3
What notation do we add to the end of the solution to show there is more than one solution?
+ k2pi
or + kpi
What is tan x equal to?
sin x / cos x
What two angles on the unit circle add or subtract to 15 degrees?
Come up with at least 2 different pairs
135 - 120 degrees
... more
24 * 3
72
what's the range of arc sin and arc tan?
- pi /2 to pi/2
What does + k2pi or + kpi represent
1
What is the following formula for?
sin a cos b + cos a sin b
sin (a + b)
3/4 + 2/3
17/12
arcsin(-1/2)
- pi/6
What is your first step in solving something like this:
sin x cos x - sin x = 0
Factor out your greatest common factor! (sin x)
sec^2 x
What two angles on the unit circle add or subtract to
pi / 12 radians
4pi /12 - 3pi / 12 (pi / 3 - pi / 4)
3/4 * 2/3
arctan(-1)
- pi /4
Which functions do you use kpi with instead of k2pi?
tangent
csc^2 x
What is the following equation a formula of?
cos a cos b - sin a sin b
cos (a + b)
What's the range of a parent exponential function?
y > 0
arctan ( - (square root of 3))
- pi /3
If sin x = 2 what does x =?
No solution!
How would I add the following two fractions?
sin x + (cos^2 x / sin x )
get a common denominator! Multiply the first term on the top and bottom by sin x