Mathematics
Siobhan747
2016-04-13 15:01:51
Which of the following is a simpler form of the expression sin (theta)sec(theta)÷ cos(theta)tan(theta)
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rakeyshaz32
2016-04-13 20:07:34

sec theta = 1 / cos theta  and tan theta  = sin theta / cos theta   so converting we get sin theta   ----------                                   sin theta cos theta cos theta ----------------                  =       ----------------------------   =    1 / cos theta  cos theta sin theta                 cos^2 theta sin theta -----------------------     cos theta 1/ cos theta  = sec theta  <--- answer

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