Trigonometric Equation with Compound Angle (1 of 2: Using identities)

[barbararudd]

Your videos are awesome. I am a math teacher and I learn so much from you! Thank you. I am very curious as to what program you are using to make these videos. I love the split screen and the presentation.

[aratoval]

You don't must use sec x function it is easier to use (sin^2 x + cos^2 x = 1) and divide by cos^2 x and you get tan^2 x + 1 immediately. One less identity. :) You are doing a good job.

[baylen]

Great work eddie, feels weird being fourth.

[jamesseth]

great work sir Eddie! hope more calculus topics next videos...

[douaabousnina]

Hiii
I think this is an easier method :
sin(x) = sin(a) => x=a+2k pi or x= pi - a + 2k pi (K <- ZI )
This is gonna solve the problem within 2 minutes !

[filipexaviermirandaaraujo]

Hi Eddie. First of all congratulations for your great work. Keep inspiring everyone. I would like to know what hardware and software you are using. Thanks.

[hamidkh]

for next videos, please add subtitles to your video. Thank you

[emilywong]

plug values into quadratic equation next?

[relaxingbluesounds]

I'm going into year 10. Any tips guys??

[particleonazock]

I am quite fond of cheeseballs. Eighth?

[yeeunpark]

Wow You are so handsome.!! I love mathematics.

[lgl_noname]

Hey Eddie,
why do you keep doing this splitting of problem solving across multiple videos ?

It is quite jarring.