Q. c−da+b−d−ca+bWhich of the following is equivalent to the given expression for c=d ?Choose 1 answer:(A) 0(B) c−d2b(C) c−d2(a+b)(D) 2c−2d2a+2b
Recognize Rule: First, we need to recognize that (d−c) is the same as −(c−d). This means that we can rewrite the second fraction as: d−ca+b=−(c−d)a+b=−c−da+b
Combine Fractions: Now, we can combine the two fractions since they have the same denominator: (a+b)/(c−d)−(a+b)/(c−d)=(a+b)/(c−d)−(−(a+b)/(c−d))
Simplify Numerators: Simplify the expression by combining the numerators: a+b - \-\(a+b\) = a+b + a+b = 2(a+b)
Combine Numerator and Denominator: Now, place the combined numerator over the common denominator: c−d2(a+b)
Check Answer: We can check our answer against the options provided. The expression we have found, c−d2(a+b), matches option (C).
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