Skip to content
free
K
1
2
practice
Home
Math
English
Science
Social Studies
Contact
Language
English
Español
Sign In
/
College Test Prep
/
ACCUPLACER
/
Complementary-Angle Cofunctions
Grade Level
ACCUPLACER
AAF.183 Complementary-Angle Cofunctions
0%
Skill Level
🔴 Hard
00:00
Progress to Next Level
25% to Medium
Easy
Medium
Hard
Mastery
100%
Assume 5t − π/8 and 5π/8 − 5t are the two acute angles of a right triangle. Which expression is equivalent to sin(5t − π/8)?
A
cos(5π/8 − 5t)
B
sin(π/2 + 5t − π/8)
C
sin(5π/8 − 5t)
D
cos(5t − π/8)
Submit Answer