Yr2 holiday work

Differentiate y = ln (5x - 7)

• _ 5 _

  5x-7

• _ 1 _

  5x-7

• ln5

• ln5x - ln 7

All the equations was TRUE accept...

Stationary point occur when....

• x = 0

Find the derivative.

• x⁴ cosx - 4x³sinx

• x⁴ cosx + 4x³sinx

• 4x³cosx

• -4x³cosx

find y' for y= sin(2x²)

• 4sin(2x²)

• 4xcos(2x²)

• 2xcos(2x²)

• xcos(4x²)

• 
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Find f '(x) if f(x) = x⁴sinx

• 4x³cosx
• x⁴cosx
• x⁴cosx + 4x³sinx
• -x⁴cosx + 4x³sinx

Find the second derivative of the function:
f (x) = sin (5x⁶)

• f ''(x) = 30x⁴ cos 5x⁶ + 30x¹⁰ sin 5x⁶
• f ''(x) = 180x⁴ cos 5x⁶ - 900x¹⁰ sin 5x⁶
• f ''(x) = 150x⁴ cos 5x⁶ + 900x¹⁰ sin 5x⁶
• f ''(x) = 150x⁴ cos 5x⁶ - 900x¹⁰ sin 5x⁶

Find dy/dx for 
y = (x² + 1)³

• dy/dx = 3(x² + 1)²
• dy/dx = 3(2x)²
• dy/dx = 6x(x² + 1)²
• dy/dx = 2x(x² + 1)²