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OpenStudy (annipuppi):

Is anybody willing to help me with some questions? I give a medal and become a fan if you explain it and show your work.

OpenStudy (annipuppi):

OpenStudy (cggurumanjunath):

sin ( x) = opp/hyp

OpenStudy (cggurumanjunath):

sin (x) =zy/yx

OpenStudy (cggurumanjunath):

sin(x)= (sqrt (119))/(12)

OpenStudy (cggurumanjunath):

now try for cos (x) @annipuppi .

OpenStudy (cggurumanjunath):

do u know the ratio for cos (x ) ?

OpenStudy (annipuppi):

cos(x)adj/hyp right?

OpenStudy (cggurumanjunath):

good

OpenStudy (annipuppi):

so cos(x)=5/12?

OpenStudy (cggurumanjunath):

:)

OpenStudy (cggurumanjunath):

Bingo .

OpenStudy (cggurumanjunath):

Superb.

OpenStudy (annipuppi):

so what do I write for the answer?

OpenStudy (cggurumanjunath):

sin (x ) = ( sqrt 119 )/12 cos (x ) =5/12

OpenStudy (annipuppi):

okay would you be willing to help me with some more?

OpenStudy (cggurumanjunath):

sure .

OpenStudy (annipuppi):

Okay here is the next one.

OpenStudy (cggurumanjunath):

define cos (22) similarly as above !

OpenStudy (cggurumanjunath):

cos (22) =adj/hyp

OpenStudy (annipuppi):

cos(22)=x/12

OpenStudy (cggurumanjunath):

x=12*cos (22)

OpenStudy (annipuppi):

How do I solve that?

OpenStudy (cggurumanjunath):

use a calculator !

OpenStudy (annipuppi):

oh okay hang on.

OpenStudy (annipuppi):

I don't have a scientific calculator so can you give me the answer?

OpenStudy (cggurumanjunath):

11.126

OpenStudy (annipuppi):

okay thanks. I have to find x again so what do I use this time?

OpenStudy (cggurumanjunath):

try .

OpenStudy (annipuppi):

Um... cos(x)=7/9?

OpenStudy (cggurumanjunath):

NO . sin (x )= 7/9

OpenStudy (annipuppi):

Oh okay. Then what? Do I just divide 7/9 and that's the answer?

OpenStudy (cggurumanjunath):

AND TAKE SIN INVERSE .

OpenStudy (cggurumanjunath):

SIN (X ) = 7/9 =0.77 X=SIN^-1 (0.77) =51 DEGREES

OpenStudy (annipuppi):

Okay thanks again. Sorry my teacher didn't really explain it. I still have two more. You don't have to help if you don't want to but I kind of need to get this finished. The next one is: Write the resultant of the two vectors as an ordered pair. <3,6> and <5,-5>. If you want to help.

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