Simplifying trigonometric expressions by using pythagorean identities

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  • čas přidán 3. 01. 2013
  • 👉 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.
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    ✅ Simplify Trigonometric Identities
    • Simplify Trigonometric...
    ✅ Simplify Trig Functions Using Identities
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    • How to Simplify Trigon...
    ✅ Simplify Trigonometric Identities by Factoring
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Komentáře • 83

  • @natedogg4463
    @natedogg4463 Před 3 lety +63

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

  • @brianmclogan
    @brianmclogan  Před 10 lety +46

    really happy to help,

  • @jayskye7387
    @jayskye7387 Před 4 lety +17

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

  • @kitsforge4809
    @kitsforge4809 Před 3 lety +5

    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.

  • @comicman2476
    @comicman2476 Před 4 lety +10

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

  • @nickmezger6547
    @nickmezger6547 Před 6 lety +14

    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

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    @oliverhernandez7200 Před 4 lety +58

    Who’s here because of coronavirus

  • @CindyCya
    @CindyCya Před 2 lety

    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!

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    @alonsoortiz5373 Před 8 lety +3

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    @smuts1372 Před 4 lety

    Hey Brian! I love your videos! Keep it up.

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    @shiromandeenanton7853 Před 5 lety +19

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  • @tanzeel5999
    @tanzeel5999 Před 4 lety

    thank you so much, you literally saved my life.

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

  • @orlandoalmandrez6436
    @orlandoalmandrez6436 Před 8 lety +5

    Big thanks man!!

  • @yanciramirez9464
    @yanciramirez9464 Před 7 lety +1

    Thank you so much for this!!!

  • @franciscocortes6623
    @franciscocortes6623 Před 5 lety +5

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

  • @FloraNovax3
    @FloraNovax3 Před 3 lety +1

    This topic is nightmare to remember and solve lol.

  • @ubebabe.
    @ubebabe. Před 6 lety

    THIS WAS SO HELPFUL

  • @chococeram6981
    @chococeram6981 Před 4 lety

    thank u so much !!!

  • @keyonnamack6987
    @keyonnamack6987 Před rokem

    My pre calc savior 🙏🏽