Hi. I need help with these questions (see image)
Please show workings.
Answer a and b

see explanation

Step-by-step explanation:

Using the chain rule along with standard derivatives

Given

y = f(g(x)) , then

= f'(g(x)) × g'(x)

(sinx) = cosx , (cosx) = - sinx

(a)

y = sin x²

= cos x² × (x² )

   = cos x² × 2x

   = 2xcosx²

(b)

y = cos4x³

= - sin4x³ × (4x³ )

   = - sin4x³ × 12x²

   = - 12x²sin4x³

x -

median = 1.25

range = 12-14.5

interquartile = q12-q14.5

y -

median = 1

range = 15-17

interquartile = q15-q17

50

step-by-step explanation: