12. Starting with any rectangle, we can create a new, larger rectangle by attaching a square to the longer side. For example, if we start with a 2 × 5 rectangle, we would glue on a 5 x 5 square, forming a 5 x 7 rectangle: 2 7 The next rectangle would be formed by attaching a 7 × 7 square to the top or bottom of the 5 × 7 rectangle. a. Create a sequence of rectangles using this rule starting with a 1 × 2 rectangle. Then write out the sequence of perimeters for the rectangles (the first term of the sequence would be 6, since the perimeter of a 1 x 2 rectangle is 6 - the next term would be 10). b. Repeat the above part this time starting with a 1 x 3 rectangle. c. Find recursive formulas for each of the sequences of perimeters you found in parts (a) and (b). Don't forget to give the initial conditions as well. d. Are the sequences arithmetic? Geometric? If not, are they close to being either of these (i.e., are the differences or ratios almost constant)? Explain.
12. Starting with any rectangle, we can create a new, larger rectangle by attaching a square to the longer side. For example, if we start with a 2 × 5 rectangle, we would glue on a 5 x 5 square, forming a 5 x 7 rectangle: 2 7 The next rectangle would be formed by attaching a 7 × 7 square to the top or bottom of the 5 × 7 rectangle. a. Create a sequence of rectangles using this rule starting with a 1 × 2 rectangle. Then write out the sequence of perimeters for the rectangles (the first term of the sequence would be 6, since the perimeter of a 1 x 2 rectangle is 6 - the next term would be 10). b. Repeat the above part this time starting with a 1 x 3 rectangle. c. Find recursive formulas for each of the sequences of perimeters you found in parts (a) and (b). Don't forget to give the initial conditions as well. d. Are the sequences arithmetic? Geometric? If not, are they close to being either of these (i.e., are the differences or ratios almost constant)? Explain.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Arithmetic and Geometric Sequences
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How the new rectangles formed from previous rectangles ?
In each step a square is added to previous rectangle to get rectangle.The main question is how we decide what is the size of square and which way it should be added .
we have to add the maximum size of square such that the new figure is also a rectangle .Let us suppose the size of rectangle is where then add square of length .It has to be added such that the one side common to both square and old rectangle.
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