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OpenStudy (anonymous):
@ganeshie8
Trigonometry Help
(for those who helped before, these are different types of problems)
Problem to be posted in image form.
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OpenStudy (anonymous):
OpenStudy (anonymous):
i know \[\sin2\theta\] becomes \[2\sin \theta \cos \theta \] but im not entirely sure where to go from here.
ganeshie8 (ganeshie8):
what exactly are you stuck at..
OpenStudy (anonymous):
well i dont really know lol, i just dont know what to do at all
ganeshie8 (ganeshie8):
\[\large \sin 2\theta = 2\sin \theta \cos \theta \]
\[\large = 2\sin \theta \sqrt{1-\sin^2 \theta }\]
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ganeshie8 (ganeshie8):
plugin the given \(\sin \theta\) value and simplify
OpenStudy (anonymous):
so i came out with the wrong answer and after entering it wrong, it actually tells me to use the Pythagorean Identities to solve
ganeshie8 (ganeshie8):
yes what did u get as answer ?
OpenStudy (anonymous):
0.4770
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OpenStudy (anonymous):
hm yours is right, ill work it again and see if i can come out with that
ganeshie8 (ganeshie8):
ok
OpenStudy (anonymous):
ahh got it!
OpenStudy (anonymous):
i did it totally wrong the first time
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