Thread: Derivative help

have a few derivatives i cannot figure out any help would be greatly appreciated

1.at(a+t)^4

2.sin(2x+5)

3.ln(x cos x)

Originally Posted by gabet16941

have a few derivatives i cannot figure out any help would be greatly appreciated

1.at(a+t)^4

2.sin(2x+5)

3.ln(x cos x)

1)Product Rule:



2)Chain rule:

Start with ,



3)Smart question, dont directly differentiate. First use log properties, make the problem easier. Then its the chain rule for the second part.