If sinA + cos2A = 1/2 and cosA+sin2A = 1/3, then find the value of sin3A.
Answers
Answered by
3
Answer:
-59/72
Step-by-step explanation:
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Answered by
0
Answer:
Step-by-step explanation:
SinA+cos2A=1/2 - 1
CosA+sin2A=1/3 - 2
Then,
Adding 1 and 2 equation
SinA+cos2A+cosA+sin2A=1/2+1/3
Sin3A+cos3A=5/6
Sin3A=5/6-Cos3A
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