Finding the flaw in $-12=(-12)^1=(-12)^{6/6}=\cdots=12$
121052
Where is the mistake? $-1=(-1)^{2/2}=\left(\left (-1\right)\displaystyle ^2\right)^{1/2}=1^{1/2}=\sqrt 1=1$
6128
If $a \cdot a = 1$ then $a = 1$ or $a = -1$
109440
How does $(12\dots n)$ and $(a\, b)$ generate $S_n$?
1002
Where is the flaw in this "proof" that 1=2? (Derivative of repeated addition)
156468
Solutions to $a+b+c=12$, $a, b, c \in \mathbb{N}_0$
54030
Square and square root and negative numbers
74122
$ 2.28319 = 0 $ !? - How do I spot the mistake?
94143
Evaluate:: $ 2 \sum_{n=1}^\infty \frac{(-1)^{n+1}}{n+1}\left( 1 + \frac12 +\cdots + \frac 1n\right) $
105080
Why are minus signs not working in this equation?
122020
What is the remainder when $1! + 2! + 3! +\cdots+ 1000!$ is divided by $12$?
125512
Doubt regarding divisibility of the expression: $1^{101}+2^{101} \cdot \cdot \cdot +2016^{101}$
85287
Prove that, for $p > 3$, $(\frac 3p) = 1$ when $p \equiv 1,11 \pmod{12}$ and $(\frac 3p) = -1$ when $p \equiv 5,7 \pmod{12}$
72620
Finding the value of $1.1^{82}$ using $(1+x)^{82}$ to a certain accuracy
120301
How to prove $(-3) \times (-4) = 12$?
116356
Combinatorial proof of $2 \cdot 3^0 + 2 \cdot 3^1 + 2 \cdot 3^2 + \cdots 2 \cdot 3^{n-1} = 3^n-1$
108923
What is wrong with this false proof? $-1=(-1)^1=(-1)^\frac{2}{2}=((-1)^2)^\frac{1}{2}=\sqrt{(-1)^2}=\sqrt{1}=1$
60589
Solve for $x$ in $6x^2-25x+12+\frac{25}{x}+\frac{6}{x^2}=0$