sin28 = cos2a then find a
Answers
Answered by
1
Answer:
-0.65
Step-by-step explanation:
sin28= approximately 0.27
cos2= approximately -0.42
therefore a = 0.27/-0.42
= -0.65
Answered by
1
Step-by-step explanation:
First Changes The ratio Cos2a in sin90-2a
Then solve it
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