anonymous
  • anonymous
Given sin(x)=-3/5 and x is in quadrant 3, what is the value of tan(x/2)?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
draw a triangle to find the third side, or remember the mother of all right triangles 3- 4 - 5
anonymous
  • anonymous
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anonymous
  • anonymous
then use the half angle formula to find \[\tan(\frac{x}{2})\]

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anonymous
  • anonymous
how do you use the half angle formula
anonymous
  • anonymous
idk look it up
anonymous
  • anonymous
http://pcb4w11.blogspot.com/2010/12/power-reducing-half-angle-formulas.html
bradely
  • bradely
tan(x/2) = sinx/(1+cosx) sinx = -3/5 and cos -4/5 Substitute find tan x/2 Source: mathskey.com
anonymous
  • anonymous
so is the answer -3
bradely
  • bradely
correct
anonymous
  • anonymous
thx for the help!!!

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