SOLUTION: Show that sin(alpha+beta)=sin alpha*cos beta +cos alpha*sin beta.
I have no idea how to prove this. We have not proved algebraically yet, which is the only way people prove it o
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-> SOLUTION: Show that sin(alpha+beta)=sin alpha*cos beta +cos alpha*sin beta.
I have no idea how to prove this. We have not proved algebraically yet, which is the only way people prove it o
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Question 844012: Show that sin(alpha+beta)=sin alpha*cos beta +cos alpha*sin beta.
I have no idea how to prove this. We have not proved algebraically yet, which is the only way people prove it on the internet. Please help! Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! To see a geometric proof use Google to search
for "khan academy trig sin(a+b) proof".
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Cheers,
Stan H.
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