(1-sin2x) = sinx-cosx
sinx-cosx
i got it but cannot understand how you got rid of the -cosx+sinx
the answer doesnt equal (sinx-cosx)^2... from that last step, how did you get from -cosx(sinx-cosx) etc to:
(sinx-cosx)+(sinx-cosx)? i mean where did the -cosx before the bracket go to? as well as the +sinx before the bracket?
thanks
i honestly do not know what you are talking about. I looked back at my post and realized that i did nothing that you said i did. apparently you are confused about something and are reading what i did incorrectly. for starters, rewrite the question, but instead of writing , write what i told you it is equal to