Sujet: multiple angle liste de sujets
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10 articles trouvés pour ce sujet.

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	Prove sin x = sin (pi - x)		2011-02-15
		Janet pose la question : Prove sin x = sin (pi - x) Penny Nom lui répond.
	cos(x) = sin(x - 1)		2010-04-28
		alex pose la question : In the equation cos x = sin x-1 for -pi/2 A: solve for x graphically B: solve algebraically and prove the solution is correct. Alex Penny Nom lui répond.
	sin(2x)/sin(3x)		2008-06-19
		matt pose la question : how does sin2x break down (not with identities) and how would sin3x be created. My prob. is sin 2x/ sin 3x and I want to know how the double(or triple angle) would break down. I want to be able to cancel out sins. Thanks! Harley Weston lui répond.
	Triple angle tangent formula		2007-03-15
		sam pose la question : Hi I am trying to derive a triple angle formulae for tan. I know i need to use compound and double angle formulae but am finding it difficult to "clean" up my fraction to get the triple angle formulae can you show me a worked derivation?! thanks Penny Nom lui répond.
	cos(3X)		2006-03-29
		Joshua pose la question : I'm having trouble proving that cos(3X)=cos3X -(cosX)(sin2 X) Penny Nom lui répond.
	sin(3A)		2004-10-20
		A student pose la question : Express sin3A in terms of sinA and cosA. Penny Nom lui répond.
	Sin(3x), cos(3x) and tan(3x)		2004-01-28
		Jon pose la question : What is the identity for cos3x, sin3x, and tan3x? In class, we learned double angel identities and were asked to find out the identity to these three trig functions. If you can help, please do. Also, i know that the cos4x- sin4x is the same as cos2x. Is cos8x-sin8x = cos2x also true? Thank you.s Chris Fisher lui répond.
	sin 2x = cos 3x		2002-02-25
		Allan pose la question : solve: sin 2x = cos 3x Primary question: how do you handle the cos 3x? Paul Betts and Chris Fisher lui répond.
	Triple angle formula		2000-02-23
		Sara pose la question : Can one derive a triple angle formula for sine and cosine? If so, how? Chris Fisher lui répond.
	Sin 4A		1999-06-22
		Ryan Cochrane pose la question : If sinA = 4/5, and A is a first quadrant angle, find sin4A Harley Weston lui répond.

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