i am having so much difficulty understanding lenz's law.
i don't know what it means and how to use it.
will someone please give me a good explanation for it because my book SUCKS and I'm having a very hard time understanding this hard(and stupid) topic so please help me.
how can i do this trig identity
ln|sec(theta) + tan(theta| + ln|sec(theta) + tan(theta)| = 0
and this trig equation
4sin(squared)x + 2cos(squared)x = 3
and cos2(theta) + 3 = 5cos(theta)
any help will be appreciated