Perform the indicated operation.u = 7i + j, v = -4i - 10j; Find 4v - u.
A. -9i + 41j
B. -23i - 3j
C. 41i + 23j
D. -23i - 41j
Answer: D
Mathematics
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Evaluate the expression.
2
A. 
B. 
C. 
D. 
Mathematics
Find the reference angle for ?. ? = -81°
A. 81° B. 171° C. -81° D. 126°
Mathematics
Use the reference angle to find the exact value of the expression. Do not use a calculator.csc 
A. - 
B. -
C. -
D. - 
Mathematics
Multiply mentally.
?
What will be an ideal response?
Mathematics