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Double-angle and half-angle identities
Worksheet
Grade Level
Trigonometry
TRIG.75 Double-angle and half-angle identities
0%
Skill Level
🔴 Hard
00:00
Progress to Next Level
25% to Medium
Easy
Medium
Hard
Mastery
100%
Rewrite 6 − 8sin²x + 2cos²x in terms of cos(2x).
A
3 + 5cos(2x)
B
5 + 3cos(2x)
C
3 − 5cos(2x)
D
5 − 3cos(2x)
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