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anonymous

  • one year ago

I seriously need help. In ∆ABC, if sin A = 4/5 and tan A =4/3, then what is cos A? Answer choices A) 3/5 B) 4/5 C) 3/4 D) 5/3

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  1. Godlovesme
    • one year ago
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    @KatelynKatelynKatelyn one sec

  2. Godlovesme
    • one year ago
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    so sin is opposite/ hypotenuse if the sin is 4/5 this tells us that the opposite is 4 and hypotenuse = 5

  3. anonymous
    • one year ago
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    so the answer is B correct? @Godlovesme

  4. Godlovesme
    • one year ago
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    no that is the sin

  5. anonymous
    • one year ago
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    oh well...pfft....I pressed B... but thats ok. I have many other questions as well if you don't mind helping me with them. I'll be posting them in a second. Thankyou @Godlovesme

  6. Godlovesme
    • one year ago
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    awhhh sorry :( make a new post because it's against the rule to post multiple questions in one thread :)

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