what's the "t" doing there? Assuming it's suposed to be an "x" (or the denominator is not zero), we have
x(1-cosx) / x-sinx
taking derivatives top and bottom, we have
(xsinx - cosx + 1) / (1-cosx)
still 0/0
derivatives again gives
(2sinx + xcosx)/sinx
still 0/0
derivatives again gives
(3cosx - xsinx)/cosx
and that is just 3
Limit as x approaches 0 of x(1-cosx)/t-sinx.
Confused on how to get this answer.
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