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OpenStudy (anonymous):
The expression tanx sinx (cos^2x cscx - sinx) simplifies to _____?
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OpenStudy (anonymous):
anyone?
OpenStudy (anonymous):
guys halp
OpenStudy (psymon):
|dw:1379833231602:dw| |dw:1379833506002:dw| sinx/cosx is tan x and the parenthesis part (cos^2(x)-sin^2(x)) is an identity, it equals cos(2x). So the whole thing simplifies to tan(x)cos(2x)
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