Double and Half Angle Formulas | Analytic Trig | Pre-Calculus

[@georgebakradze3202]

Also at 33:54 u get sin^2x=1 not 0

[@apothe6]

This was a really good lesson before my test Brian, thanks for a very thorough guide

[@Lycku]

You have made my life so much easier

[@matthewjamison1193]

Thank you for making this video. I like how you refer to tangent often. This is often overlooked in trig lessons.

[@shavanianisha1205]

Shouldn't the answer at 33:46 be 1 and not 0?

[@user-rk7nj9lw9g]

You’re the besttttttt thank you for making this so smooth and easy 👌🏻❤️

[@dj2turnt278]

I have a question. I hope you still read these. @35:35, There should be 2 different values for 2x. They are 3pi/2 and pi/2. If you and pi to either of those, you end up at the other. Why is a value of 3pi/2 not in the final solution? Is it considered an extraneous solution?

[@TheFirstNamelessOne]

People like you are helpful.

[@RedaAQadri]

you are literally the only reason im passing

[@aaarcane]

Teacher just 1 question, from where country are you at?
Cuz you look like a cool math teacher that my school needs
😁

[@georgebakradze3202]

At 30:07 for all solution if n equals 1 then we get negative so i guess pi/6 plus 2pin and 2pi/3+2pin is correctly

[@AdityaDonkada]

You are an absoloute top shotta I love your videos always coming in clutch

[@georgebakradze3202]

Great lesson Mr. Brian

[@Bleshious]

how can I find the value of cos2(theta) if sin2(theta)=3/4 and theta is between 0 degrees and 90 degrees?

[@georgebakradze3202]

I have 1 question Mr.Brian why we use at 34:22 set to equal 0 instead of division on sin squared ?

[@user-dk5kj5dv9x]

Im pretty sure its to create a trig identity.

[@stevestef6613]

Great video,
btw at 33:33 you made a little error 3 divided by 3 = 1 not 0 lol, it happens

[@Sinepreggib]

thank you sir

[@kendrickskasusu4304]

How do you find the angle between 0°and 360° when the given equation is
Sin2x=2tan2x

[@liofan7266]

Thank you

[@jimmygore8214]

13:02
30:16

[@huseyinhalitince4404]

Hi teacher İ guess you forgat the denominator expression at the 14:47 th minut of video

[@brianmclogan]

no, should have made it more clear, cosine times secant will result in 1, sorry about that

[@MrZackavelli]

In the first exercise, for cos (theta + theta) , why is cos squared theta - sin squared theta equal to 2 theta? I thought it was equal to cos 2 theta

[@zhamilyadossayeva6889]

thank you!

[@brianmclogan]

You are very welcome!!

[@noamlouzoun8417]

Why on student example 3 no.4 is it 2cos^2 i thought cos of 2x is just cos^2-sin^2

[@Faresassadiii]

When the actual f am I gonna use any of this shi

[@rul1175]

In your precalc mid or final thats when.

[@Faresassadiii]

@@rul1175 update , 5 months later and guess what , still haven't used any of it !

[@calculus988]

Math haters be like ⬆️

[@Faresassadiii]

@@calculus988 ur acc name is calculus998 ur literally jizzin on ur screen thinkin bout math

[@Faresassadiii]

@@calculus988brother doin cartwheels on it thinkin about derivatives

[@gavingroves5904]

8:00

[@deepshikaboppisetti2214]

❤❤

[@elephants730]

Now this is a sexy lesson

[@brianmclogan]

haha yeaaaah

[@Dan1elatapia]

has anyone ever told you that you look like john fetterman

[@kurt183]

Hi Bryan. May I ask to you that you have FB account? Because I need your help.

[@BobBob-uv9fq]

Pretty extensive

[@brianmclogan]

Haha yep

[@BobBob-uv9fq]

@@brianmclogan hi ,watching from Edinburgh 🏴󠁧󠁢󠁳󠁣󠁴󠁿 / doing the higher over hear 55 just for a bit of “fun”

[@fish-zb4tg]

Hi

[@brianmclogan]

Hi Johnrev!!

[@twisted_hotdog3506]

Noice merch

[@fish-zb4tg]

Im first

[@brianmclogan]

boom

[@BrutusFanboy12345]

Wow this information is painfully useless. I hate trig!