Question: this is all that im given for the question please help in any way In this question we will consider the space X = [0,

 this is all that im given for the question please help

this is all that im given for the question please help in any way

In this question we will consider the space X = [0, 1] x [0, 1] equipped with the equiv- alence relation ~ depicted below. = = Let Xo X/ ~ denote the point Xo = [(0,0)). Define paths 7,8: [0, 1] X/ ^ by the + ~ rules y(t) = [(t,0)) and 8(t) = [(0,t)] for t [0,1]. Note that 7 and 8 both start and end at 80. Let c, d 71(X, xo) be their path-homotopy classes c = (y), d = [S]. (a) Give formulas for the paths y* 8 and 8*7. [2] (b) Show that the paths y*d and 8*y are path-homotopic; then prove that cd=d.c in 71(X, 20). [3 (c) Compute the fundamental group of X. [1] Recall from the notes the definition of the one-point union Sl v S. (d) Let x be a point of X. Show that Sl v Sl is a deformation retract for the space Y = X\{c}. [5] In this question we will consider the space X = [0, 1] x [0, 1] equipped with the equiv- alence relation ~ depicted below. = = Let Xo X/ ~ denote the point Xo = [(0,0)). Define paths 7,8: [0, 1] X/ ^ by the + ~ rules y(t) = [(t,0)) and 8(t) = [(0,t)] for t [0,1]. Note that 7 and 8 both start and end at 80. Let c, d 71(X, xo) be their path-homotopy classes c = (y), d = [S]. (a) Give formulas for the paths y* 8 and 8*7. [2] (b) Show that the paths y*d and 8*y are path-homotopic; then prove that cd=d.c in 71(X, 20). [3 (c) Compute the fundamental group of X. [1] Recall from the notes the definition of the one-point union Sl v S. (d) Let x be a point of X. Show that Sl v Sl is a deformation retract for the space Y = X\{c}. [5]

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