Use a graphing calculator to solve the equation in the interval from 0 to 2 pi. Round to the nearest hundredth. 7 cos (2t)=3
i still don’t have the answer to this day :(, i guess i can try to find a calculator to do it for me
Answer: t=0.56 and t= 2.58
Plez answer🥲
R.I.P.
Also, t = 3.71 and t = 5.72
7 cos (2t)= 3
cos2t= 3/7
2t=1.128, 5.155
t=0.564, 2.578
To solve the equation 7cos(2t) = 3 in the interval from 0 to 2π using a graphing calculator, you can follow these steps:
Step 1: Enter the equation into the graphing calculator.
- Press the "Mode" button on the calculator and make sure you are in "Degree" mode if your calculator supports it.
- Press the "Y=" button to access the equation editor.
- Enter "7cos(2x)" on the left side of the equation editor and "3" on the right side.
Step 2: Adjust the window settings.
- Press the "Window" button to adjust the graphing window.
- Set the x-axis range from 0 to 2π (or adjust according to your desired interval).
- You may adjust the scale and grid as needed.
Step 3: Graph the equation.
- Press the "Graph" button to plot the graph of the equation.
Step 4: Find the solutions.
- Look at the graph on your calculator screen to identify the x-values where the graph intersects the y = 3 line.
- You can use the TRACE (or similar) function on your calculator to move along the graph and find each solution.
Step 5: Round the solutions to the nearest hundredth.
- Once you have identified the x-values for each solution, round them to the nearest hundredth.
That's it! You have now solved the equation 7cos(2t) = 3 in the given interval (0 to 2π) using a graphing calculator and rounded the solutions to the nearest hundredth.
does anyone know the answer? i’m confused
huh. for some reason that link didn't work. Try this
https://www.wolframalpha.com/input/?i=7cos%282t%29+%3D+3+
so what's the problem? You do know how to use your calculator, right?
You can confirm your results here:
https://www.wolframalpha.com/input/?i=7cos%282t%29+%3D+3+for+t%3D0..2pi