Let y be a line segment from z = 2i to z=7+2i. What is the value of the integral fs (2 )dz , where f (2 ) = cos²(-)-1? 극(2isin 2-n) (++2sin 2i) a- z = C- (++2cos 2i) 2 b- z =- d- None of these The correct answer is (a) The correct answer is (b) The correct answer is (c) The correct answer is (d)

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