# Math Help - Solving

1. ## Solving

Hey i got a questions, im not sure how to solve the following equation for 't'. How would i do it?

2.4 = sqrt(2.1^2 + (0.049*t^2)^2)

Thanks

2. Originally Posted by taurus
Hey i got a questions, im not sure how to solve the following equation for 't'. How would i do it?

2.4 = sqrt(2.1^2 + (0.049*t^2)^2)

Thanks
First square:

$

2.4^2 = 2.1^2 + 0.049^2 t^4
$

so:

$
t^4=\frac{2.4^2-2.1^2}{0.049^2}
$

Now find the fourth roots of the rigt hand side and check to see which solve
the original equation.

RonL