Question

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(rs)(4) =

Answer 1

Answer:

Step-by-step explanation:

Answer 2

(rs)(4) = 8  if r(x) = 2√x and s(x)= √x

Given:

• r(x) = 2√x
• s(x)= √x

To Find

• (rs)(4)

Solution

(fg)(x) = f(x).g(x)

Step 1:

Find (rs)(x )

(rs)(x) = r(x).s(x)

Step 2:

Substitute r(x) = 2√x and s(x)= √x and simplify

(rs)(x) =2√x . √x

(rs)(x) =2x

Step 3:

Substitute x  = 4

(rs) (4) = 2(4)

(rs)(4) = 8

Hence (rs)(4) = 8  if r(x) = 2√x and s(x)= √x

(Your Question is incomplete , complete Question is  r(x) = 2√x , s(x)= √x and to find (rs)(4)  )