Hey I'm completely hopeless at these.. how would you do them?
cos(x+15) = 2/3
0
Trig Question
Started by Yan, Mar 14 2007 02:39 PM
2 replies to this topic
#1
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Posted 14 March 2007 - 02:39 PM
"Do not be frightened of death; it is life that causes pain"
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Posted 14 March 2007 - 10:41 PM
cos(x+15) = 2/3
take the cos over to the other side to get
x+15 = cos^-1(2/3)
x+15 = 48.1897
then solve for x
x = 48.1897 - 15
x = 33.1897
x is in degrees btw
take the cos over to the other side to get
x+15 = cos^-1(2/3)
x+15 = 48.1897
then solve for x
x = 48.1897 - 15
x = 33.1897
x is in degrees btw
#3
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Posted 16 March 2007 - 09:49 PM
ahh... I see now!! thanks!!
"Do not be frightened of death; it is life that causes pain"
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