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heartylove

  • one year ago

Find the exact value of sin((cos^-1)(5/13))

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  1. dpaInc
    • one year ago
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    draw a right triangle and label the sides according to what's given... let \(\large \theta=cos^{-1}(\frac{5}{13}) \) now, \(\large \theta=cos^{-1}(\frac{5}{13}) \) means \(\large cos\theta=\frac{5}{13} \) so you can draw the right triangle along with the angle theta...|dw:1360580027671:dw|

  2. dpaInc
    • one year ago
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    since the problem is \(\large sin(cos^{-1}\frac{5}{13})=sin(\theta)=??? \) you can see that you need to find the side opposite theta to find sin(theta).... just use pythagorean theorem...

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