Find any values of the variables that must be excluded.
A. z = 9
B. z = 0
C. z = -9
D. Defined for all real numbers
Answer: C
Mathematics
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Find the conjugate of each complex number.5 + j
A. -5 - j B. 5 - j C. No conjugate. D. -5 + j
Mathematics
Use the given triangle and the following information: a =7 and b =3. Leave the answers in fraction form.
 FIGURE.png)
Find sin B.
Mathematics
Find the inverse of the matrix 
.
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
Find the quotient and check.
What will be an ideal response?
Mathematics