Thursday

December 18, 2014

December 18, 2014

Posted by **sh** on Thursday, May 28, 2009 at 6:09am.

1-cos2x/sin2x = 1+tanx/1+cotx

I simplified the RS to tanx.

LS:(1-2cos²x+1)/2sinxcosx

(2+2cos²x)/2sinxcosx

How do I simplify the rest?

- math -
**Reiny**, Thursday, May 28, 2009 at 7:19amchange the LS to

(1 - (1 - 2sin²x))/(2sinxcosx)

= 2sin²x/(2sinxcox)

= sinx/cosx

= tanx = RS

- math -
**sh**, Thursday, May 28, 2009 at 7:28amthanks! I've been trying to get this one for quite awhile. So many options to choose :(

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