Đề bài toán: So sánh 2⁶⁰⁰ và 3⁴⁰⁰

Bài giải:

Ta có: 2⁶⁰⁰ = 2^6.100 = (2⁶)¹⁰⁰ = 64¹⁰⁰

          3⁴⁰⁰ = 3^4.100 = (3⁴)¹⁰⁰ = 81¹⁰⁰

Vì 64¹⁰⁰ < 81¹⁰⁰ nên 2⁶⁰⁰ < 3⁴⁰⁰

Chúc bạn học tốt.

2⁶⁰⁰=8²⁰⁰;3⁴⁰⁰=9²⁰⁰

ma 8²⁰⁰<9²⁰⁰

=>2⁶⁰⁰<3⁴⁰⁰

1 . 2¹⁴ = (2⁶)⁴ = 64⁴

     3¹⁶ = (3⁴)⁴ = 81⁴

Vì 64⁴ < 81⁴ nên 2¹⁴ < 3¹⁶

2. [(2²)²]² 

= 2⁸ 

= 256

1. Ta có : 2²⁴ = 2^3.8 = (2³)⁸ = 8⁸

               3¹⁶ = 3^2.8 = (3²)⁸ = 9⁸

Vì 8⁸ < 9⁸ => 2²⁴ < 3¹⁶

Minh Ánh lm sai òi

a) \(x^{16}=x^3\cdot x^{13}\)

b) \(x^{16}=\left(x^4\right)^4\)

c) \(x^{16}=x^{18}:x^2\)

Có phải là:

      \(x^{16}:x^4\)

      \(=x^{12}\)

tíc mình nha

Ta có: \(2^{150}=\left(2^3\right)^{50}=8^{50}\)

\(3^{100}=\left(3^2\right)^{50}=9^{50}\)

=>\(8^{50}< 9^{50}\)

=>\(2^{150}< 3^{100}\)

cảm ơn  đi rồi có sau 3p

\(2^x.2^{x+1}=32\)

\(\Rightarrow2^{2x+1}=2^5\)

\(\Rightarrow2x+1=5\)

\(\Rightarrow2x=4\)\(\Rightarrow x=2\)

Vậy \(x=2\)

x² + 2x = 0

=> x(x + 2) = 0

=> \(\orbr{\begin{cases}x=0\\x+2=0\end{cases}}\)

=> \(\orbr{\begin{cases}x=0\\x=-2\end{cases}}\)

(x - 2) + 3.x² - 6x = 0

=> (x - 2) + 3x² - 3x . 2 = 0

=> (x - 2) + 3x.(x - 2) = 0

=> (1 + 3x)(x - 2) = 0

=> \(\orbr{\begin{cases}1+3x=0\\x-2=0\end{cases}}\)

=> \(\orbr{\begin{cases}x=-\frac{1}{3}\\x=2\end{cases}}\)

a) \(\frac{7^3.5^8}{49.25^4}=\frac{7^3.5^8}{7^2.\left(5^2\right)^4}=7.\frac{5^8}{5^8}=7\)

b) \(\frac{3^9.25.5^3}{15.625.3^8}=\frac{3.3^8.5^2.5^3}{3.5.5^4.3^8}=\frac{5^5}{5^5}=1\)

c) Đề hơi sai roi bạn oi

d) \(\left(\frac{2}{5}-\frac{1}{2}\right)^2+\left(\frac{1}{2}+\frac{3}{5}\right)^2=\left(\frac{-1}{10}\right)^2+\left(\frac{11}{10}\right)^2=\frac{1}{100}+\frac{121}{100}=\frac{61}{50}\)

Khanh Nguyễn Ngọc  :câu d ko sai bạn nha dấu "/" là trên nhó

a) Vì \(-45< -16\) nên \(\left(-\dfrac{45}{17}\right)^{15}< \left(\dfrac{-16}{17}\right)^{15}\)

b) Vì \(21< 23\) nên \(\left(-\dfrac{8}{9}\right)^{21}< \left(-\dfrac{8}{9}\right)^{23}\)

c) \(27^{40}=3^{3^{40}}=3^{120}\)

\(64^{60}=8^{2^{60}}=8^{120}\)

Vì \(3< 8\) nên \(3^{120}< 8^{120}\) hay \(27^{40}< 64^{60}\)

con ai kooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo