How do I show that sin(arccos(x))= the square root of 1-x^2? and cos(arctan(3/x))= x/the square root of x^2+9?
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Member
14 years ago
Posts: 8
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sin(arccos(x)) = the square root of 1-x^2?
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cos(arctan(3/x)) = (x) / (the square root of x^2+9)?
Hello everyone! I'm in 2nd year college taking a 1st year calc course. I've been doing ok so far, but I'm really unfamiliar with these two problems. Can someone explain to me how to do it? 🙁
Member
14 years ago
Posts: 797
Questions like this should go in Homework Help.
I don't know much calc but there are a lot of people in that thread who seem to know a lot so I'm sure somebody can help you 🙂
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Member
14 years ago
Posts: 8
Sorry about that. Thanksies!
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