the point ( 0,0) ( pi/2 , 1) and ( pi, 0)) are the graph of sin(x). to use the the qudretic formula ax^2+ bx+c and find the equation> please
2007-06-18 17:38:00 · 5 answers · asked by kareena 1 in Science & Mathematics ➔ Mathematics
You can "fit" a quadratic through these 3 points.
Set [a x^2 + b x + c = y] by substituting in the values of x and y for each point. You will wind up with 3 equations with a, b, and c as variables. Solve for them as you would solve 2 equations with 2 unknowns.
2007-06-18 17:52:31 · answer #1 · answered by cattbarf 7 · 0⤊ 0⤋
yes, those points are on the graph of sin(x) which repeats the pattern from pi to 2pi and forever
x = (-b +- sqrt(b^2-4ac))/2a
2007-06-19 00:44:20 · answer #2 · answered by holdm 7 · 0⤊ 1⤋
If this problem is from some textbook it would be better if you copied it verbatim. I am not able to discern what the problem is from what you have typed.
2007-06-19 00:48:54 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Maybe this site will help you out... they have everything from basic arithmetic to Calculus: http://www.math.com/
2007-06-19 00:41:45 · answer #4 · answered by Anonymous · 0⤊ 0⤋
that looks like some sort of freaky code!
2007-06-19 00:44:05 · answer #5 · answered by sydneysmusic 2 · 0⤊ 0⤋