Calculus 1 Review - Derivatives

Find the derivative of: f(x) = 4x⁴-3x³-9

• 16x⁴-9x³

• 16x⁴-9x³-0

• 16x³-9x²-9

• 16x³-9x²

At which point(s) will the slopes of the tangent line be zero?

• at C only

• at points A, C and E only

• at point B and D only

• at points A and E only

• cosx
• -cosx
• -sinx cosx
• sinx cosx

• sinx
• -sinx
• -cscx cotx
• sec²x

• cscx cotx
• secx tanx
• sec²x
• -cscx cotx

• secx tanx
• sec²x
• cscx cotx
• -cscx cotx

• secx tanx
• -secx tanx
• tan²x
• cscx cotx

• -cscx cotx
• cscx cotx
• -csc²x
• csc²x

Calculate the derivative using the product rule

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Calculate the derivative.

• f'(x)=x²cos(x)+2xsin(x)

• f'(x)=x²sin(x)+2xcos(x)

• f'(x)=x²sin(x)+2xsin(x)