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	Is 0.1234567891011.... periodic?		2010-02-23
		Adriana pose la question : 0.1234567891011.......Is this fraction periodic ? Penny Nom lui répond.
	A periodic function		2008-11-26
		Ali pose la question : A periodic function f(x) has a period of 9, if(2)=-3 and f(5)=13, determine the value of f(11)? tks /rgrds Ali Penny Nom lui répond.
	The number of hours of daylight		2008-06-03
		Marilyn pose la question : Hi, could you please help me with this question? In a city (in the Northern Hemisphere) the minimum number of hours of daylight is 9.6 and the maximum number is 14.4. If the 80th day of the year (March 21) has 12 hours of daylight, determine a sine function which gives the number of hours of daylight for any given day of the year. (Jan 1 = 1, Jan 2 = 2, etc). Thank you! Harley Weston lui répond.
	The swaying of a building in the wind		2007-08-11
		San pose la question : During a strong wind, a tall builing, such as the CN Tower, can sway back and forth as much as 100cm, with a period of 10 seconds. Please help me to determine the equation for this function, in the form y=asinkx Stephen La Rocque lui répond.
	The period of sin(x) + cos(x)		2005-07-21
		A student pose la question : WHAT IS THE PERIOD OF SIN(X)+COS(X)? Penny Nom lui répond.
	Finite non-periodical numbers		2001-03-27
		Wouter pose la question : Is there anyone who knows the official name for decimal finite non-periodical numbers such as 0.4 or 0.25 as opposite of numbers like 0.3333333... or 0.28571428571428...? Penny Nom lui répond.
	Period		1999-12-28
		Mahdawi pose la question : I have attached a diagram of the graph, and I need to find out its period. I really don't understand how to do so, please help! Harley Weston lui répond.

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