Mathematics
13 Online
OpenStudy (scarlettthecamel):
***MEDAL, FAN AND TESTIMONY TO BE REWARDED!***
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OpenStudy (scarlettthecamel):
OpenStudy (anonymous):
use trigonometry!
OpenStudy (anonymous):
in first use \[\sin \theta =\frac{ opposite side }{ hypotenuse }\]
for second
\[\cos \theta= \frac{ adjecent side }{ hypotenuse }\]
OpenStudy (anonymous):
now you have angle and side,put values and find the answers
OpenStudy (scarlettthecamel):
okay thanks!
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OpenStudy (anonymous):
welcome ^^
OpenStudy (scarlettthecamel):
so i do 5.2*sin/61
OpenStudy (anonymous):
that angle is 61?
\[hypo = \frac{ 5.2 }{ \sin61 }\]
OpenStudy (scarlettthecamel):
so what do i type into my calculator?
OpenStudy (anonymous):
5.2 divided by sin 61 in degrees
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OpenStudy (anonymous):
dont calculate sin in radians
OpenStudy (scarlettthecamel):
okay
OpenStudy (anonymous):
do the 2nd in similar way
using cos instead of sin
OpenStudy (scarlettthecamel):
OpenStudy (scarlettthecamel):
what have i done wrong
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OpenStudy (scarlettthecamel):
@aajugdar
OpenStudy (anonymous):
remove the bracket?
OpenStudy (scarlettthecamel):
did i forget to add a bracket at the end
OpenStudy (scarlettthecamel):
i can't it comes up on that calc
OpenStudy (anonymous):
okay then put bracket at end
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OpenStudy (scarlettthecamel):
i got 5.95 witht the bracket at the end
OpenStudy (anonymous):
sounds correct
now find 2nd
OpenStudy (scarlettthecamel):
okay, thanks very much for your help it has helped alot
OpenStudy (anonymous):
:)
OpenStudy (anonymous):
in the second hypo= .5/cos(25)