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Determine the measure of x

Trigonometry
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|dw:1358388607551:dw|
Using trigg .. how would you determine the value of x ?
use cos rule

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Other answers:

yee but how would I plug everything in.. I did it on my test and got it wrong :/
you just plug it in LOL!!! make sure when you get your answer you need to do inverse cos?
what did you get as answer? and what is real answer?
lmaao I sound dumb but its actually confusing to me :$ I did it and he wrote "bad form" ? I got 1 out of 3 marks .
can you pls show me your working out?
you gotta make sure that 17cm is C
yee i put 17 cm as c .. im confused as to how you know its c ?
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ohh okk !
you want to find x right? so x has to be c and opposite x is C got it!!??
try again and lets see what answer you got?
ok im gonna try it
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Is this correct? @kuoministers
when i got the decimal, i did the inverse of cos
YES!!! but it needs to be in degrees. still right
YES! thank you, its gonna help alot for my exam tommoro :)
cheers :)
ill give you another tip
Please do!
if the side is the longest the angle will also be the largest because often question ask to find the largest angle
the angle opposite to that side sorry
ok understood, thank you!
eg... on your question the angle opposite 21 will be the largest. which is angle y
ok wait I have another question, give me a few more mins please
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for this you need the sin rule
does this have the same kind of concept?
okk
you need to know all the sin and cos rules
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okk I understand that very well now how about for this question ? how would you solve it.. it has 2 parts
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it includes the angle of depression
ahaha this question is long :P
that angle is 8 degree btw
I knooow LOOL :p sorrrry .. i have liek a million questions but I dont wanna be annoying! honestly my teacher's no help at all and I have my exam tommoroe :$ Thank you soo much for your help tho!
ohh ok
do you know how to solve it now? or do i need to go further?
Mind going further? How did you get 8 ?
my bad its 98 IM SORRY >.<
yes that makes more sence :)
im solving 4 question at once and my own HW...
WOOW you can multitask x2
calculus homework isnt fun... try to avoid it :D
I have to take calculus and functions and all that jazz .. I want to be a dentist ! we need all that LOL *sigh*
you are in year 9-10 i presume?
oh understand how to do part a) now?
using cos rule for the triangle in red will help get the distance right ?
yes
yees and yees 10
sorry if its extremely messy now
no dw its not! and okk I understand now. Im going to try solving it on my own now and will ask questions if I get stuck:)
to find b) it would be similar from finding a) gl with getting the correct answer
sure :)
you can see anytime if im online and message me if your my fan :P
ahhaha will do! You were great help btw thaanks
hey :)
hahhaa help me !! :(
now you can work it out?
im going out for lunch soon :) so ill try to make it quick
x = 1.33km ? \
yes i got something similiar to that!!!
OMGG Thank God !!
I swear I thought I was never gonna understand this .
1.339618281
yea well done :)
now lets see you do number b O.O :D
yess got exactly taht
lol oh great ;P
so have you gotton a answer for b yet?
1.33 km ??
1.325968944 ? full answer I got
1.326581208 close enough :)
\[\Huge{\color{red}{\leftarrow \boxed{\mathbb{\text{CongratS}}}}} \]
lol idk what im pointing to :P
omg YESS!, it took me alot of thinking even after you explained it lmaaao!
hahaaa ;P thaaanks girl? or guy? lol you helped me alot
almost midnight here, need to sleep lol !! Wish me luck for tommoroe:)
guy :D
i just find this cat humorous

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