SOLUTION: I need help on this question. Sketch the graph of the function y = cos 2x for 0<= x<= 3/2π. Using the same axes, draw a suitable straight line to find the number of solutions to

Question 1180797: I need help on this question.
Sketch the graph of the function y = cos 2x for 0<= x<= 3/2π. Using the same axes, draw a suitable straight line to find the number of solutions to the equation 5π(1 - tan^2 x) = x(1 + tan^2 x) , for 0 <= x <= 3/2π.
Answer by ikleyn(52790) (Show Source): You can put this solution on YOUR website!
.

Go to web-site

https://www.desmos.com/calculator

Find there free of charge online plotting tool.

Do all your job on your own with no charge.

Alternatively, you can do it on your own, using your graphing calculator.

If you don't know how to do it using your graphing calculator,

see these descriptions/lessons/educational web-sites

https://www.instructables.com/How-to-Find-the-Intersecting-Points-of-Two-Functio/
(text description/instructions)

https://www.youtube.com/watch?v=p5FUaa6pyQY
(video-lesson for Casio calculator)

https://www.youtube.com/watch?v=q1OEXc_Gio4
(video-lesson for Texas Instrument calculators)

/////////////

Enjoy and be happy (!)

You may report me about your new skills which you learned/gained working with these tools.

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