I have a small question about multiplication.
From what I learned at school 1/5/6 equals to 6/5 (I moved 6 to the top)
Is this always true ? How about this example:
It is known that x/tanx equals
x * 1/(cox/sinx)
Is it legal to say it equals
x * sinx/cosx ? (Move the sin upwards)
Thanks a lot.