`y . y^7 = y^1 . y^7 =` \(y^{1+7}\) `= y^8`

`y . y^7 = y^1 . y^7 = y<sup>1+7</sup> = y^8`

2041 : 49 = 41 dư 32

\(\left\{{}\begin{matrix}-2x+3y=1\\\dfrac{1}{3}x-\dfrac{1}{2}y=-\dfrac{1}{6}\end{matrix}\right.=>\left\{{}\begin{matrix}-2x+3y=1\\2x-3y=-1\end{matrix}\right.=>\left\{{}\begin{matrix}0x=0\\-2x+3y=1\end{matrix}\right.\)

Vậy có vô số nghiệm

decorated

- Last month => thì quá khứ đơn

S + V(ed/C2) + O

`2.4.8.8.8.8`

`= 2. 2^2 . 2^3 . 2^3 . 2^3 . 2^3`

= \(2^{1+2+3+3+3+3}\)

= \(2^{15}\)

\(A=\dfrac{sin+cos}{sin-cos}\)

\(A=\dfrac{\dfrac{sin}{cos}+1}{\dfrac{sin}{cos}-1}\)

\(A=\dfrac{tan+1}{tan-1}\)

\(A=\dfrac{2+1}{2-1}\)

`A = 3`

`(5x - 1)^6 = 729`

`=> (5x - 1)^6 = 3^6`

`=> 5x - 1 = 3` hoặc `5x - 1 = -3`

`=> 5x = 4` hoặc `5x = -2`

`=> x = 4/5` hoặc `x = -2/5`

-------------------

`(2x + 1)^3 = -0,001`

`=> (2x + 1)^3 = (-0,1)^3`

`=> 2x + 1 = -0,1`

`=> 2x  = -1001/1000`

`=> x = -1001/2000`

\(\left\{{}\begin{matrix}0,2x+0,5y=0,7\\4x+10y=9\end{matrix}\right.\)

<=> \(\left\{{}\begin{matrix}4x+10y=3,5\\4x+10y=9\end{matrix}\right.\)

<=> \(\left\{{}\begin{matrix}0x=5,5\left(ko\exists\right)\\4x+2y=3,5\end{matrix}\right.\)