Explore a world of knowledge and get your questions answered on IDNLearn.com. Get accurate answers to your questions from our community of experts who are always ready to provide timely and relevant solutions.
Sagot :
Certainly! Let's work through the problem step-by-step to find the product of the complex numbers [tex]\((-4 + 4i)\)[/tex] and [tex]\((3 + 2i)\)[/tex].
### Step 1: Recall the formula for multiplying complex numbers
For any two complex numbers [tex]\( (a + bi) \)[/tex] and [tex]\( (c + di) \)[/tex], their product is given by:
[tex]\[ (a + bi)(c + di) = (ac - bd) + (ad + bc)i \][/tex]
### Step 2: Identify the real and imaginary parts
For the given complex numbers:
[tex]\[ (-4 + 4i) \quad \text{and} \quad (3 + 2i) \][/tex]
We have:
- [tex]\( a = -4 \)[/tex]
- [tex]\( b = 4 \)[/tex]
- [tex]\( c = 3 \)[/tex]
- [tex]\( d = 2 \)[/tex]
### Step 3: Multiply using the formula
Using the formula, we find the real part and the imaginary part separately.
#### Real Part:
The real part is given by:
[tex]\[ ac - bd \][/tex]
Substituting the values:
[tex]\[ (-4) \cdot 3 - 4 \cdot 2 = -12 - 8 = -20 \][/tex]
#### Imaginary Part:
The imaginary part is given by:
[tex]\[ ad + bc \][/tex]
Substituting the values:
[tex]\[ (-4) \cdot 2 + 4 \cdot 3 = -8 + 12 = 4 \][/tex]
### Step 4: Combine the real and imaginary parts
Combining the real part and the imaginary part, we get:
[tex]\[ (-4 + 4i) \cdot (3 + 2i) = -20 + 4i \][/tex]
### Conclusion
So, the product of the complex numbers [tex]\((-4 + 4i)\)[/tex] and [tex]\((3 + 2i)\)[/tex] is:
[tex]\[ \boxed{-20 + 4i} \][/tex]
### Step 1: Recall the formula for multiplying complex numbers
For any two complex numbers [tex]\( (a + bi) \)[/tex] and [tex]\( (c + di) \)[/tex], their product is given by:
[tex]\[ (a + bi)(c + di) = (ac - bd) + (ad + bc)i \][/tex]
### Step 2: Identify the real and imaginary parts
For the given complex numbers:
[tex]\[ (-4 + 4i) \quad \text{and} \quad (3 + 2i) \][/tex]
We have:
- [tex]\( a = -4 \)[/tex]
- [tex]\( b = 4 \)[/tex]
- [tex]\( c = 3 \)[/tex]
- [tex]\( d = 2 \)[/tex]
### Step 3: Multiply using the formula
Using the formula, we find the real part and the imaginary part separately.
#### Real Part:
The real part is given by:
[tex]\[ ac - bd \][/tex]
Substituting the values:
[tex]\[ (-4) \cdot 3 - 4 \cdot 2 = -12 - 8 = -20 \][/tex]
#### Imaginary Part:
The imaginary part is given by:
[tex]\[ ad + bc \][/tex]
Substituting the values:
[tex]\[ (-4) \cdot 2 + 4 \cdot 3 = -8 + 12 = 4 \][/tex]
### Step 4: Combine the real and imaginary parts
Combining the real part and the imaginary part, we get:
[tex]\[ (-4 + 4i) \cdot (3 + 2i) = -20 + 4i \][/tex]
### Conclusion
So, the product of the complex numbers [tex]\((-4 + 4i)\)[/tex] and [tex]\((3 + 2i)\)[/tex] is:
[tex]\[ \boxed{-20 + 4i} \][/tex]
We appreciate your participation in this forum. Keep exploring, asking questions, and sharing your insights with the community. Together, we can find the best solutions. Your questions deserve accurate answers. Thank you for visiting IDNLearn.com, and see you again for more solutions.