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  1. #1 trig 
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    Help with this trig homework pelase
    https://i.imgur.com/D6QCeRM.png
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    Use this to help you out.
    Soh Cah Toa

    Sin = opposite/hypothenuse
    Cos - adjacent/hypothenuse
    Tan = opposite / adjacent

    And the theta would be the opposite of whatever i provided on the top. So just plug in the numbers.

    Opposite = 4
    Hypotenuse = 7
    Adjacent = 8

    For the 3rd side, it'll be 7^2 + 4^2 = 64 and the square root would be 8 because 8 * 8 = 64

    Hope this helped
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    Quote Originally Posted by Settings View Post
    Use this to help you out.
    Soh Cah Toa

    Sin = opposite/hypothenuse
    Cos - adjacent/hypothenuse
    Tan = opposite / adjacent

    And the theta would be the opposite of whatever i provided on the top. So just plug in the numbers.

    Opposite = 4
    Hypotenuse = 7
    Adjacent = 8

    For the 3rd side, it'll be 7^2 + 4^2 = 64 and the square root would be 8 because 8 * 8 = 64

    Hope this helped
    Pretty sure it did i'm new at this lol
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  4. #4  
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    Just memorize the "SOH CAH TOA" rule and you'll be set. Just keep doing similar questions and it will stick to ur brain.

    Oh yeah, u should check out Khan Academy, will sort of be a drug for you if you start using that site.
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  5. #5  
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    Quote Originally Posted by Settings View Post
    Use this to help you out.
    Soh Cah Toa

    Sin = opposite/hypothenuse
    Cos - adjacent/hypothenuse
    Tan = opposite / adjacent

    And the theta would be the opposite of whatever i provided on the top. So just plug in the numbers.

    Opposite = 4
    Hypotenuse = 7
    Adjacent = 8

    For the 3rd side, it'll be 7^2 + 4^2 = 64 and the square root would be 8 because 8 * 8 = 64

    Hope this helped
    The Pythagorean Theorem states that the square of the hypotenuse is equal to the sum of the squares of the other two sides. The equation should then be written as...

    Code:
    a^2 + 4^2 = 7^2
    ...where 'a' is representing the side unmarked. To simplify this equation in one step (I can supply all of the steps, if necessary), the equation would then look like this...

    Code:
    a^2 = 33
    ...then making side 'a' equal to the square root of 33. You could simplify further to clean up the square root but I usually only took this step if the professor required it. Now that you have all of the side lengths, you can begin performing the six trigonometric functions using the SOH (sin = opposite / hypotenuse) CAH (cos = adjacent / hypotenuse) TOA (tan = opposite / adjacent) method, as mentioned above. If you need any more help, I am happy to elaborate.
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