anonymous
  • anonymous
just a quick question!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
in triangle ABC , angle B is a right angle. AB+30 and Sec A=5/3. find each value in fraction and decimal form
anonymous
  • anonymous
sin A
anonymous
  • anonymous
someone??

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anonymous
  • anonymous
sin a =4/5
anonymous
  • anonymous
ok but how did you get that
anonymous
  • anonymous
|dw:1369794012893:dw| here sec a=hyppoteneus/adjacent so hp=5 and adj=3 so opposite side =4 by pythagorus thm so sin a=opposite/hypp=4/5
anonymous
  • anonymous
its sin A
anonymous
  • anonymous
isnt sin opposite/ hypotenuse
anonymous
  • anonymous
no sinA=opposite/hyp
chrisplusian
  • chrisplusian
you said sec A=5/3 so the sec=hyp/adj. the hyp=5 and the side adjacent to angle A would be adjacent. Through pythagorean theorem you can find the other value because it is a right triangle
anonymous
  • anonymous
in the pathagorema theorem what values go with what is a=5 and c=3?
anonymous
  • anonymous
@chrisplusian @aditya96
anonymous
  • anonymous
b=4
anonymous
  • anonymous
i know that but i need to show work so what goes where
anonymous
  • anonymous
does a=3 c=5?
anonymous
  • anonymous
(hypo)^2=(side 1)^2 +(side 2)^2
anonymous
  • anonymous
@chrisplusian can you help me with one more
anonymous
  • anonymous
csc C
anonymous
  • anonymous
sam thing but with these values
chrisplusian
  • chrisplusian
The trick with pythagorean theorem is that the "c" is always the hypotenuse
anonymous
  • anonymous
ohh
chrisplusian
  • chrisplusian
Csc=Hyp/opp so the opposite side from angle C is =3 and the hypotenuse is =5. so csc C =5/3
chrisplusian
  • chrisplusian
Hope that helps @lala2
anonymous
  • anonymous
yes it does alot! thanks soo much!
chrisplusian
  • chrisplusian
no problem I have to do some studying now so good luck
anonymous
  • anonymous
ok thanks again!

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