College Algebra : College Algebra
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Example Questions
Example Question #391 : College Algebra
Add:
To add the terms of the numerator, we will need to have the same denominator.
Multiply both denominators together.
Multiply the numerators with what was multiplied on the denominator.
Combine like terms.
The answer is:
Example Question #391 : College Algebra
Add/Subtract:
None of the Above
Step 1: Find the Least Common denominator of all the fractions..
LCD=
Step 2: Convert all fractions to denominator 
Step 3: Re-write all fractions in terms of the original equation...
Answer: 
Example Question #1 : Basic Operations With Complex Numbers
Consider the following definitions of imaginary numbers:
Then,
Example Question #1 : Basic Operations With Complex Numbers
What is the value of 
When dealing with imaginary numbers, we multiply by foiling as we do with binomials. When we do this we get the expression below:
Since we know that 
Example Question #1 : Basic Operations With Complex Numbers
What is the value of 
Recall that the definition of imaginary numbers gives that 
Example Question #6 : How To Add Integers
Add:
When adding complex numbers, add the real parts and the imaginary parts separately to get another complex number in standard form.
Adding the real parts gives 
Example Question #2 : Complex Numbers
Divide:
The answer must be in standard form.
Multiply both the numerator and the denominator by the conjugate of the denominator which is 
The numerator after simplification give us
The denominator is equal to
Hence, the final answer in standard form =
Example Question #2 : Complex Numbers
Divide:
Answer must be in standard form.
Multiply both the numerator and the denominator by the conjugate of the denominator which is 
This is equal to
Since 
When you then cancel the negatives in both numerator and denominator (remember that 
Example Question #21 : Sat Subject Test In Math I
Evaluate:
Use the FOIL method to simplify. FOIL means to mulitply the first terms together, then multiply the outer terms together, then multiply the inner terms togethers, and lastly, mulitply the last terms together.
The imaginary 
Write the terms for 
Replace 
Example Question #4 : Complex Numbers
The answer is not present.
Combine like terms:
Distribute:
Combine like terms:
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