Get comprehensive solutions to your questions with the help of IDNLearn.com's experts. Get thorough and trustworthy answers to your queries from our extensive network of knowledgeable professionals.

6. On donne l'expression [tex]$A=\frac{96 \times 10^{-4}}{3 \times 10^{-6}}$[/tex]. Le résultat de [tex]$A$[/tex] sous forme d'un nombre entier est :

a) 320
b) 32
c) 3200
d) 32000


Sagot :

To solve the expression [tex]\( A = \frac{96 \times 10^{-4}}{3 \times 10^{-6}} \)[/tex] and find the result in its integer form, we will follow a detailed step-by-step approach:

1. Write down the given expression:

[tex]\[ A = \frac{96 \times 10^{-4}}{3 \times 10^{-6}} \][/tex]

2. Separate the constants and the powers of 10:

[tex]\[ A = \left(\frac{96}{3}\right) \times \left(\frac{10^{-4}}{10^{-6}}\right) \][/tex]

3. Simplify the constants:

[tex]\[ \frac{96}{3} = 32 \][/tex]

4. Simplify the powers of 10 using the property [tex]\(\frac{10^a}{10^b} = 10^{a-b}\)[/tex]:

[tex]\[ \frac{10^{-4}}{10^{-6}} = 10^{-4 - (-6)} = 10^{-4 + 6} = 10^{2} \][/tex]

5. Combine the simplified values:

[tex]\[ A = 32 \times 10^{2} \][/tex]

6. Convert [tex]\(10^{2}\)[/tex] to its numerical value:

[tex]\[ 10^{2} = 100 \][/tex]

7. Multiply the constants:

[tex]\[ A = 32 \times 100 = 3200 \][/tex]

Thus, the result of the expression [tex]\( A \)[/tex] in its integer form is [tex]\( \boxed{3200} \)[/tex].

Therefore, the correct answer is:

c) 3200