# Thread: solve for t in a trigonometric equation

1. ## solve for t in a trigonometric equation

can someone explain me how to solve for t in this equation 50=((100)/(2))(t-sin(t)) . I can do it with the solver in my calculator , but I have to solve it algebraically ...... any help would be welcome!

2. $\displaystyle 50 = \frac{100}{2}(t-sin(t))$

cannot be solved using algebra, you will have to employ a numerical method.

3. You can make

$\displaystyle 50 = \frac{100}{2}(t-sin(t))$

into

$\displaystyle 50 = 50\times(t-sin(t))$

$\displaystyle 1 = (t-sin(t))$

$\displaystyle t = sin(t)$

Then either graph them to find an approximate value or even pop the equations into a spreadsheet, that should get you close.