Eric Nicholas K's answer to Kathy's Secondary 4 A Maths Singapore question.
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Congratulations! Your method for Q3c and the solutions are perfectly correct.
Similar ideas apply for 3d.
I choose x = 0 to kill off A and B, having observed that A and B are attached to x. I can find C from there.
Next, x = 1 kills off A and I can get B.
Finally, x = any number except 0, 1 and 3 to find A.
I will only be able to answer further questions after 12 am.
Similar ideas apply for 3d.
I choose x = 0 to kill off A and B, having observed that A and B are attached to x. I can find C from there.
Next, x = 1 kills off A and I can get B.
Finally, x = any number except 0, 1 and 3 to find A.
I will only be able to answer further questions after 12 am.
Date Posted:
5 years ago
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