Questions typed like yours were posted yesterday by "sarah"
http://www.jiskha.com/display.cgi?id=1268184722
Both Bob and I answered one of them.
you probably meant to type
tan^2 x - sin^2 x = (sin^2 x)(tan^2 x)
Please verify.
prove:
tan*2x-sin*2x=sin*2xtan*2x
1 answer