highschoolmom2010
  • highschoolmom2010
using sin, cos or tan find the value of X
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
highschoolmom2010
  • highschoolmom2010
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ganeshie8
  • ganeshie8
SOH-CAH-TOA
ganeshie8
  • ganeshie8
go to the given angle corner, and look at the triangle. figure out wat adjacent side and hypotenuse are

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ganeshie8
  • ganeshie8
|dw:1376246607998:dw|
highschoolmom2010
  • highschoolmom2010
adjacent is x and opposite is unknown
highschoolmom2010
  • highschoolmom2010
hypotenuse is 11
ganeshie8
  • ganeshie8
yes !
highschoolmom2010
  • highschoolmom2010
so we use cos
ganeshie8
  • ganeshie8
you want to find x, which is adjacent you knw the hypotenuse so, which trig ratio helps us ?
ganeshie8
  • ganeshie8
yes, cos !!
highschoolmom2010
  • highschoolmom2010
\[\cos 41=\frac{ x }{ 11 }\]
ganeshie8
  • ganeshie8
perfect !
highschoolmom2010
  • highschoolmom2010
\[(11*)\cos 41=\frac{ x }{ 11 }*11\] \[11\cos 41=8.3\]
ganeshie8
  • ganeshie8
8.3 = \(\large \color{red}{\checkmark}\)
highschoolmom2010
  • highschoolmom2010
so i did it right :DDD
ganeshie8
  • ganeshie8
you did great :) good work !!
highschoolmom2010
  • highschoolmom2010
thanks i think i understand this now
ganeshie8
  • ganeshie8
good :D

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