$\displaystyle sin^2t-4sint+1=0$

Ok I know your suppose to subsitute it for x or u, but I cant seem to be able to solve that quadratic

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- Mar 10th 2010, 06:47 AMpurplec16Find all soultions
$\displaystyle sin^2t-4sint+1=0$

Ok I know your suppose to subsitute it for x or u, but I cant seem to be able to solve that quadratic - Mar 10th 2010, 07:38 AMTKHunny
Are you saying that you cannot solve $\displaystyle x^{2}-4x+1 = 0$?

Are you sure you want to stay with that opinion? Give it one more try before you give up. - Mar 10th 2010, 08:26 AMHallsofIvy
You can't factor it with integer coefficients.

Complete the square or use the quadratic formula.