9.6 Inverse Trig Functions Flashcards
0
Q
every trig function has…
sin–> ?
cos–> ?
tan–> ?
A
…an inverse
sin-1 “inverse sine”
cos-1 “inverse cosine”
tan-1 “inverse tangent”
1
Q
what do inverse functions do?
examples…
A
they undo eachother
multiplying & division
addition & subtraction
squaring & TAKING a square root
2
Q
what do you say when you use the inverse of a trig function?
A
you are TAKING THE INVERSE of it
3
Q
what trig function can have improper fractions?
A
only tangent!!
4
Q
solving a right triangle means…
A
…you find the measures of all 3 angles AND all 3 side lengths
5
Q
you can “solve a right triangle” if you know the following…
A
- 2 side lengths
- 1 side length & 1 acute angle measure
- 1 side length & 1 trigonometric ratio
6
Q
what should you always do with word problems?
A
DRAW THEM!!!
