Use the result of Problem 86 to do the following problems: 

(a) Write the first 11 terms of the Fibonacci sequence. 

(b) Write the first 10 terms of the ratio u_{n + 1}/ u_n.

(c) As n gets large, what number does the ratio approach? This number is referred to as the golden ratio. Rectangles whose sides are in this ratio were considered pleasing to the eye by the Greeks. For example, the façade of the Parthenon was constructed using the golden ratio. 

(d) Write down the first 10 terms of the ratio u_n/u_{n + 1}.

(e) As n gets large, what number does the ratio approach?

This number is referred to as the conjugate golden ratio. This ratio is believed to have been used in the construction of the Great Pyramid in Egypt. The ratio equals the sum of the areas of the four face triangles divided by the total surface area of the Great Pyramid.