Hi, I need help finding the derivative for the problem h(x)= x/2^(1/2) + cos x - 2^(1/2)/2. I think the derivative of cos x is -sin x and -2^(1/2)/2 should be 0 because of the constant rule but what are the steps for the derivative of the first part of the problem? The book I'm using only gives the answer and no explanation. Thank you.