Proving an Identity In this exercise we prove the identity
(a) Write the left hand side of this equation as the sum of two fractions.
(b) Show that a common denominator of the expression that you found in part (a) is
(c) Add the two fractions using the common denominator in part (b), simplify the numerator, and note that the right-hand side of the equation.
The left hand side of the equation is a sum of fractions.
The common denominator of the expression is .
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