Asked by Josh
Let theta be an angle in the first quadrant, and suppose sin theta equals a.
Evaluate sin(180 degrees + theta) in terms of a
sin(180 degrees + theta) =
Evaluate sin(180 degrees + theta) in terms of a
sin(180 degrees + theta) =
Answers
Answered by
Steve
for any x, sin(x+180) = -sin(x)
check the sum formula for sines
check the sum formula for sines
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