If cos2????=sin4????, where 2???? and 4???? are acute angles, find the value of ????.
Answers
Answered by
16
Step-by-step explanation:
Theta = 15
bcoz put cos 2theta = sin 4theta
cos 2theta = cos (90-4theta)
2theta =90 -4thetA
6theta =90
theta = 15 degree.
Answered by
0
Answer:
?????=15
hope it help u......
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