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OpenStudy (anonymous):
why sen(2sen^(-1)x) = 2 x sqrt(1-x^2)
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OpenStudy (anonymous):
what is sen?
OpenStudy (anonymous):
\[sen(2sen^-1 x) = 2 x \sqrt(1-x^2)\]
OpenStudy (anonymous):
sin
OpenStudy (anonymous):
|dw:1323580510899:dw|
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