1/5
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
---|
No study sessions yet.
Formula for finding sin-1(sin(π))
sin(π - x) = sin x
Formula for finding cos-1(cos(π))
cos(2π - x) = cos x
Formula for finding tan-1(tan(π))
tan(x + π) = tan x
SOLVE: sin-1(sin(7π/6))
sin(π - 7π/6) = sin(-π/6)
SOLVE: cos-1(cos(7π/6))
cos(2π - 7π/6) = cos(5π/6)
SOLVE: tan-1(tan(7π/6))
tan(π + 7π/6) = tan(13π/6) = tan(π/6)