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Thanks for the help ricky. I solved the first one using your advice but if anyone has any answers about the other that would help greatly...
Some other problems that im having trouble on are....
sec4 x - tan4 x = 1 + 2tan2x
^ ^ ^
tan x sin2x = 2 - 2cos2 x
^
csc x sin 2x - sec x = cos 2x sec x
2cos2 x/2 tan x = tan x + sin x
^
tan 4x = (2tan 2x)/(2 - sec2 2x)
^
(^) Same as before...Denotes a power...
Any help would be appreciated...I have no idea what i am doing here...
The problem is.....
cos4 x sin3 x = (cos4 x - cos6 x)sinx
^ ^ ^ ^
(^) means to rise the nuber as a power...
i just cant seem to find where to start this problem at????
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