I have some problems calculating problems like: arctan 2 + arctan 3 (answer cannot contain cyclometric functions) arctan(1+sqrt(2)) + arctan(1-sqrt(2)) (answer cannot contain cyclometric functions) Any hint would be appreciated.
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Hello, Sabo! I'll do the first one. I assume you know: . Evaluate: . Let: . Then: . . . . . . Therefore: .
Ah, so simple. Well, it usually is, isn't it? =) Thanks a lot!
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