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tmua.me Medium Set A Paper 2 · Q1

Paper 2Algebra

The real numbers aa and bb satisfy

a+b=6,ab=7.a+b=6,\qquad ab=7.

What is the value of

ab+ba ?\frac ab+\frac ba\,?
A67\dfrac67
B87\dfrac87
C227\dfrac{22}7
D297\dfrac{29}7
E367\dfrac{36}7

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