Sender: Stu Date: Tue, 1 Jun 1999 21:15:17 -0700 Math 12 Student cos(theta) / 1+ sin(theta)=sec(theta)-tan(theta) I've being having trouble with this one on my correspondance course. Hi Stu, You didn't give any instructions but I expext that you want to show that the exprression is valid. Much of algebra and trigonometry is recognizing patterns. In the expression
^{2}(theta) by multiplying by 1-sin(theta), and that 1-sin^{2}(theta) = cos^{2}(theta). Thus my argument would proceed as
You should now be able to complete the problem.
Cheers
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