SOLUTION: I need help with a couple of algebra problems 1.Select any irrational number, and turn it into a rational number by using addition, subtraction, multiplication, division, or expon

Algebra ->  Real-numbers -> SOLUTION: I need help with a couple of algebra problems 1.Select any irrational number, and turn it into a rational number by using addition, subtraction, multiplication, division, or expon      Log On


   

Question 162050: I need help with a couple of algebra problems
1.Select any irrational number, and turn it into a rational number by using addition, subtraction, multiplication, division, or exponentiation
2.Select any imaginary number (of the form "a + bi" where a and b are non-zero real numbers), and turn it into a real number by using addition, subtraction, multiplication, division, or exponentiation.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1. My irrational number is sqrt%282%29.
Addition : sqrt%282%29%2B%28-sqrt%282%29%29=0
Subtraction : sqrt%282%29-sqrt%282%29=0
Multiplication: sqrt%282%29sqrt%2818%29=sqrt%2836%29=6
Division: sqrt%282%29%2Fsqrt%281%2F2%29=sqrt%284%29=2
Exponentiation: %28sqrt%282%29%29%5E2=2
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2. My complex number is 3+5i.
Addition : %283%2B5i%29%2B%282-5i%29=5%2B0i=5
Subtraction : %283%2B5i%29-%281%2B5i%29=2%2B0i=2
Multiplication: %283%2B5i%29%283-5i%29=9-25i%5E2=34
Division: %283%2B5i%29%2F%286%2B10i%29=1%2F2