Mathematics, 31.01.2020 20:05, stodd9503

Plz me i am suck!

which counterexample disproves the conjecture?
if a perfect square is odd, then its square root is multiple of 3?
a: 4
b: 9
c: 25
d: 81

which counterexample disproves the conjecture?
if n is a positive integer , then 2n - 1 is a prime number.
a: n = 6
b: n = 5
c: n = 3
d: n = 2

Answers: 1

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Plz me i am suck!

which counterexample disproves the conjecture?
if a perfect s...