Simplifying trigonometric expressions by using pythagorean identities

👉 Learn how to verify trigonometric identities having rational expressions. To verify trigonometric expression means to verify that the terms on the left-hand side of the equality sign is equal to the terms on the right-hand side. To verify rational trigonometric identities, it is usually more convenient to start with getting rid of the denominator(s) of the rational term(s). This can be done by multiplying both the numerator and the denominator by the conjugate of the denominator, if the denominator involves addition/subtraction or by the reciprocal of the denominator, if the denominator involves product or the expression can be converted to Pythagoras trigonometric identity if possible.

Organized Videos:
✅ Simplify Trigonometric Identities
✅ Simplify Trig Functions Using Identities
✅ How to Simplify The Trigonometric Identitities by Dividing
✅ How to Simplify Trigonometric Identities by Adding and Subtracting
✅ Simplify Trigonometric Identities by Factoring
✅ How to Simplify Trigonometric Expressions by Multiplying
✅ Learn About Trigonometric Identities

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#analytictrig #brianmlogan

[the_beast_vids]

8 years later and this dude single handedly saves my precal career

[kitsforge]

just wanted to let you know that your videos helped me so much in my trigonometry class this is the only thing that actually helped me understand this.

[jayskye]

My math teacher is the best. But whenever I don’t understand something in class I know you’ll help me understand 🥱 thank

[comicman]

This was very helpful. I had been absent for the lesson on identities and this helped me understand it a lot. Thank you!

[nickmezger]

Hey man I really appreciate you posting these my teacher is really hard to understand and I really struggle with proofs and your a big help

[CindyCya]

i go to a overcrowded school so it’s hard for my teacher to make sure everyone’s caught up, your videos help me not get left behind! thanks!

[fagitocumaeda]

you make my classes bearable, i have a test tomorrow!!!

[franciscocortes]

But what if the 1 is at the opposide side, instead 1-sec its sec-1

[alonsoortiz]

I love your videos so much! You're an amazing teacher.

[FloraNovax]

This topic is nightmare to remember and solve lol.
I’ve been on this for so long, I’ve had so many meltdowns 😆

[briannabrown]

Thanks :) that helped. But the problems I need help with are a bit more complex. Could you work out a problem with more steps please.

[tanzeel]

thank you so much, you literally saved my life.

[miguelconstantino-guzman]

Thank you! Now, these, I can solve, but there are other expressions that I can’t seem to figure out. I just get lost. I do not know what I can manipulate.

[kingshearer]

How do you apply that to the real world though ?  
I think too much time is spent on the esoterics of Maths.

[jaysong]

It's easier to just replace csc^2x with (1/sinx)^2

[Heyheyhaleyd]

I have a quiz tommorow and I just couldn't understand this in class.

[jaimevalentina]

I don’t really get from 4:30 onwards .. can you explain it please thank u

[masmcg]

On my homework does anyone understand how (sec+1)-(sec-1) =2??

[sanjaykumar-gbhu]

sir can we apply square roots on numerator and denominator simultaneously
of a fraction.

[harijo]

Bro I’ve got the shittiest teacher for precalc and I’ve got a test in an hour