Try another version of this question Get help: Box 1: Enter your answer as an expression. Example: 3x^2+1, x/5, (a+b)/c
Box 2: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Let ` f(x) = 4 \ln(5 x) `
` f'( x ) = `
` f'( 4 ) = `
Be sure your variables match those in the question `4/x`
Enter DNE for Does Not Exist, oo for Infinity 1