Solving Trigonometric Equations By Factoring & By Using Double Angle Identities

This trigonometry video tutorial explains how to solve trigonometric equations by factoring and by using double angle formulas and identities. It explains how to factor trigonometric expressions using the difference of perfect squares method and the same techniques used to factor trinomials in algebra.

Solving Trig Equations - Finding All Solutions:

Solving Trig Equations With Multiple Angles:

Law of Sines:

More Examples - Law of Sines:

Area of an Oblique Triangle:

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The Height of a Triangle - Heron's Formula:

Law of Cosines:

Polar Coordinates:

Polar Equations to Rectangular Equations:

Rectangular Equations to Polar Equations:

How To Graph Polar Equations:

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Complex Numbers - De Moivre's Theorem:

Dot Product of Two Vectors:

Trigonometry Final Exam Review:

Final Exams and Video Playlists:

Full-Length Videos and Worksheets:

[chrismenza]

This guy is legit like the only person I understand in math.

[ruchipatel]

What the hell was I doing this whole time without this dude?? This guys a freaking legend!

[seraphim]

Hallelujah ur a life savior, you covered some things that I struggled on 😭

[Pharomid]

This is probably the hardest concept we did so far in my algebra 2 class. I got a test in 3 days on this and everything else on the unit. I'm probably gonna watch this multiple times.

[voxov_]

literally have a test tomorrow and this saved me 😭THANK YOU

[georgesadler]

MR. Organic Chemistry Tutor thank you for solving Trigonometric Equations by Factoring and using Identities.

[mikaklubis]

thank you so much!! My math class goes super fast/confusingly and you always help to simply explain - huge props to you

[janhavijadhav]

Just watched the video and it was so helpful for my trigonometric equations. Thank you ✨

[Kristielina]

Thanks, appreciate your time and great, helpful math advice ❤

[jonnabohol]

Thank You for sharing your knowledge sir, it's quite a huge help for us

[Maketh]

All I could ever say is thank you so much Mr. Organic Chemistry guy

[dudedude]

I forgotten some algebra there's no hope for me in this trig class

[odikachidiosdadoanyanwu]

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[luboyeragideon]

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[stefanobilleter]

A couple of those could have been solved much simpler.
But thanks for all your videos!

[ibn-]

Istg this factorization, been studying it for years now and i still dont get it smh

[YourGoodPalSatanIsHere]

Fucking love this guy, missed a lot of school and with this I’m catching up

[fredrickmwengi]

Finally i found this channel so important after understanding nothing from my lecture

[AlwaysWillBeNeutral]

I'm a little confused with the 4 sin^2 x - 1 = 0 example. I understood every step to sin x equaling 1/2 and -1/2. But my understanding is that I would have to use arc sine in order to find the values of x. Doesn't arc sine only exist in Quadrants 1 and 4? So, wouldn't x equal 30 degrees (pi/6) and -30 degrees (-pi/6) since the range is [-pi/2, pi/2]? Please advise.

As always, your videos are superb. Thank you for taking the time to make and upload them. Using them to study for my math certification exam (teaching).

[lucidfangirl]

Bruh i feel like my teachers missed a couple things when teaching this