Special Triangles, Unit Circle in Trigonometry
Precalculus · Flashcards · Application
PRECALCULUS · FLASHCARDS
Card 1
of 3
0 got it
0 to review
Current
Got it
Still learning
Not seen
QUESTION
What is
sin
(
π
−
π
\/
6
)
\sin(\pi-\pi\/6)
sin
(
π
−
π
\/
6
)
?
QUESTION
What is
sin
(
2
π
−
π
\/
3
)
\sin(2\pi-\pi\/3)
sin
(
2
π
−
π
\/
3
)
?
QUESTION
What is
tan
(
2
π
−
π
\/
4
)
\tan(2\pi-\pi\/4)
tan
(
2
π
−
π
\/
4
)
?
Tap to flip before you grade
ANSWER
−
1
-1
−
1
.
2
π
−
π
/
4
=
7
π
/
4
2\pi - \pi/4 = 7\pi/4
2
π
−
π
/4
=
7
π
/4
; using
tan
(
2
π
−
x
)
=
−
tan
(
x
)
\tan(2\pi-x)=-\tan(x)
tan
(
2
π
−
x
)
=
−
tan
(
x
)
gives
−
tan
(
π
/
4
)
=
−
1
-\tan(\pi/4)=-1
−
tan
(
π
/4
)
=
−
1
.
Swipe → got it · swipe ← still learning
Got it
Still learning
Flip Card
Previous card
Next card