shaleiah
  • shaleiah
I need help with a question... but, I'm sure most mathletes and Human calculators will find this kinda complex.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
Nnesha
  • Nnesha
what is the definition of sin ? cos and tan ?
shaleiah
  • shaleiah
cosine= adjacent / hypotenuse
shaleiah
  • shaleiah
tan = opposite/adjacent

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More answers

Nnesha
  • Nnesha
correct what about sin and tan ?
shaleiah
  • shaleiah
sine=opp/hypotenuse
Nnesha
  • Nnesha
here is an example |dw:1449783297338:dw| if i have to find x value i would use cosine ratio bec the given is hypotenuse and i'm looking for adjacent side
shaleiah
  • shaleiah
5 would be the hypotenuse...
shaleiah
  • shaleiah
Since, it's the longest side the value is on..?
Nnesha
  • Nnesha
here is another example |dw:1449783395784:dw| the given is adjacent side and hypotenuse i can use cos ratio to find x angle
Nnesha
  • Nnesha
yes right 5 hypotenuse the longest side of right triangle
Nnesha
  • Nnesha
so for first example i can write \[\large\rm \cos (65)=\frac{x}{5}\]
Nnesha
  • Nnesha
make sense ??
shaleiah
  • shaleiah
yes
Nnesha
  • Nnesha
it depends on what angle we are looking at and also given information so now look at the pic to find angle L what ratio would u use ?
shaleiah
  • shaleiah
@Nnesha
anonymous
  • anonymous
Depends on where you choose the angle. They are all possible answers to the question
Nnesha
  • Nnesha
lets do the 2nd example first |dw:1449784888573:dw| given is adjacent side which is 3 and hyp which is 4 now write it as a fraction cos =adjacent /hyp so \[\rm \cos (x)= \frac{3}{4}\] and remember to find angle you should take invs of the ratio \[\rm x = cos^{-1}(\frac{3}{4})\]
shaleiah
  • shaleiah
Okay
Nnesha
  • Nnesha
|dw:1449785112890:dw| now write what ratio would you use to find angle L that's it
shaleiah
  • shaleiah
J and K
Nnesha
  • Nnesha
what do you mean ?
Nnesha
  • Nnesha
|dw:1449785580115:dw| L is an angle let angle L= x now how would you find x ? what ratio you can apply to find the angle x
shaleiah
  • shaleiah
sine ratio?
shaleiah
  • shaleiah
@Nnesha
Nnesha
  • Nnesha
alright how would you write it ??? sin( L) = ??

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