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OpenStudy (a1234):
Find the exact value of cos2theta. Is this 5/13?
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OpenStudy (a1234):
OpenStudy (anonymous):
Hint: SOH *CAH* TOA ....Cos= Adjacent (3) over Hypotenuse (x) You need to find the hypotenuse to continue... ;) hope that helps!
OpenStudy (a1234):
Yes...I worked it all out. Is the answer 5/13?
OpenStudy (anonymous):
Thats what I got, but I'm going to check again just to make sure.
OpenStudy (anonymous):
Yup :)
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OpenStudy (a1234):
Thanks!
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