Find f ′(x) for f(x) = sin (3x2).
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Answer:
Step-by-step explanation:
Perimeter of a square:
The perimeter of a square of side x is given by:
Perimeter of a rectangle:
The perimeter of a rectangle of length l and width w is given by:
The length of the sides of a square measure 2x-5.
This means that the perimeter of the square is:
The length of a rectangle measures 2x, and the width measures x + 2.
This means that the perimeter of the rectangle is:
For what value of x is the perimeter of the square the same as the perimeter of the rectangle?
This is x for which:
So