Trig Functions (rad)
Interactive practice questions
Consider the expression $\sin\frac{5\pi}{6}$sin5π6.
a
In which quadrant is $\frac{5\pi}{6}$5π6?
fourth quadrant
A
second quadrant
B
third quadrant
C
first quadrant
D
b
What positive acute angle is $\frac{5\pi}{6}$5π6 related to?
c
Is $\sin\frac{5\pi}{6}$sin5π6 positive or negative?
negative
A
positive
B
d
Rewrite $\sin\frac{5\pi}{6}$sin5π6 in terms of its relative acute angle. You do not need to evaluate $\sin\frac{5\pi}{6}$sin5π6.
Easy
2min
Consider the expression $\cos\frac{5\pi}{4}$cos5π4.
Easy
2min
Consider the expression $\tan\frac{5\pi}{3}$tan5π3.
Easy
1min
Find the exact value of $\cos\left(-\frac{5\pi}{3}\right)$cos(−5π3)
Easy
< 1min
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