The volume of a section in a thread is given by=V = 4Sinx(1 + Cosx). What is the value of x that gives a maximum on the interval [0,1/2] volume using the Golden search method? Given that e = :0.4

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A: According to our guidelines we can answer only one question and rest can be reposted. 

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Q: 1. Which of the following diagrams represent a function? Let X={1,2,3,4}X={1,2,3,4} and Y={a,b.c.d}....

A: Given, X={1,2,3,4} and Y={a,b,c,d} . To find which of the diagram represent the function .