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Picture Problem -- completely lost!  TOPIC_SOLVED

I'm having a hard time figuring this problem out, using this image: http://i49.tinypic.com/35hlbm8.png The distance AD and BC is 18 feet. The distance between DC is 12 feet. And for clarification, the 8 degrees is between the vertical by AD and the actual AD pole, if that makes any sense. I need to ...
by andrew05
on Tue Apr 16, 2013 6:35 am
 
Forum: Trigonometry
Topic: Picture Problem -- completely lost!
Replies: 1
Views: 1153

Finding solution to sin of arcsin  TOPIC_SOLVED

An expression on my homework I just CAN'T figure out is sin(arccos (x/2)+(pi/3))

I'm not sure if I should do the arccos of both x/2 and pi/3...or if I should do the arccos of x/2, add pi/3, then take the sin of that. I've tried both ways and get answers that make sense either way.
by andrew05
on Tue Apr 16, 2013 10:18 am
 
Forum: Trigonometry
Topic: Finding solution to sin of arcsin
Replies: 1
Views: 1305

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