I attached a problem from my homework.
My only issue is that I don't know why it is x arc sec and not 2x arc sec etc....shouldn't there be a 2x from the chain rule from the derivative inside the square root? I cannot understand for my life why there is an x and not a 2x.
I kept getting this wrong until I googled it and someone in yahoo answers gave a response without a 2, so i tried it and my online homework said it was right. But don't know why!!!!!!