# The proof + reason - math problems

#### Number of problems found: 2

- Odd/even number

Pick any number. If that number is even, divide it by 2. If it's odd, multiply it by three and add one. Now repeat the process with your new number. If you keep going, you'll eventually end up at one every time. Prove. - Prove

Prove that k1 and k2 are the equations of two circles. Find the equation of the line that passes through the centers of these circles. k1: x^{2}+y^{2}+2x+4y+1=0 k2: x^{2}+y^{2}-8x+6y+9=0

We apologize, but in this category are not a lot of examples.

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Do you have an exciting math question or word problem that you can't solve? Ask a question or post a math problem, and we can try to solve it.

The proof - math problems. Reason - math problems.