Thread: how to solve equation with two unknowns

1. how to solve equation with two unknowns

please can someone explain to me how i can solve the above equation?

2. Re: how to solve equation with two unknowns

(a) substitute $24^\circ$ for $\theta$ and calculate the current $i$ with your calculator in degree mode.

(b) use a graphing utility to plot $y = 0.735 \sqrt{\dfrac{x}{\sin(x+30^\circ)}}$ and $y = 3$. determine the intersection of the two graphs.

3. Re: how to solve equation with two unknowns

thank you Cervesa, that is very helpful. Please could you tell me what graphing software you have used in the above example or is that a calculator?

4. Re: how to solve equation with two unknowns

It’s a TI84 calculator

5. Re: how to solve equation with two unknowns

There is a free graphing utility called "Desmos" at https://www.desmos.com/calculator

6. Re: how to solve equation with two unknowns

thank you for your help, it has been amazing!!