If it asks me if sqrt(2) is even, what's the answer? Yes? No? Undetermined?
For example, one question asked me: Is X odd?
1.) 2x-1 is odd
2.) x^3 is odd.
I assumed statement two was enough, because I didn't consider radicals. I suppose the cube root of three is NOT odd. But the cube of the cube root of 3 is.
Anyway, the answer was C. Apparently you need the first statement to prove that x is an integer, then you can use the second.
But back to my hypothetical, is the sqrt(2) even? Yes, no, undetermined?
For example, one question asked me: Is X odd?
1.) 2x-1 is odd
2.) x^3 is odd.
I assumed statement two was enough, because I didn't consider radicals. I suppose the cube root of three is NOT odd. But the cube of the cube root of 3 is.
Anyway, the answer was C. Apparently you need the first statement to prove that x is an integer, then you can use the second.
But back to my hypothetical, is the sqrt(2) even? Yes, no, undetermined?
