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OpenStudy (anonymous):
simplify cos ( 2 arcsin (3/5) + π/2) using the triangle method ans: - 24/25
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OpenStudy (anonymous):
|dw:1426812406822:dw| theres your answer.
OpenStudy (anonymous):
Haha it's like captcha
OpenStudy (anonymous):
haha
OpenStudy (anonymous):
|dw:1426812506921:dw|
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