Question

If f:[-2, 2]B is given by f[x] = 2x3
, then find B. So that f is
onto.

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

[-16,16]

Step-by-step explanation:

Question: If :[−2,2]→ is given by ()=23, then find B so that f is onto.

To find: Find The range of B such that f is onto.

Given: :[−2,2]→ and ()=2³

Explanation:-

It is given that :[−2,2]→ is given by  ()=23 .

Now to find the value of B for which f is onto we have to find the maximum and minimum value of B in terms of f(x).

Minimum value of B = 2(-2)³

                                = -16

Maximum value of B= 2(2)³

                                = 16

Therefore f:[-2,2]→[-16,16]

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