sin 30 - sin 0.sin 20
sin + sin 20 cos 0
X = COS X
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2A, given A = theta for convenience
Step-by-step explanation:
I firstly thought to type up the whole process but couldn't find the symbol for theta in here and typing it up would've consumed up much time so attached the picture of the work. Whenever figuring out the solutions for any mathematical questions, step-by-step work works well(based on my experience)!
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