Write the expression in the standard form a + bi.If z = 6 - 2i, evaluate z + 
.
A. 12 + 4i
B. -4i
C. 12
D. 12 - 4i
Answer: C
Mathematics
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. Consider only positive values of x. Round your answer to two decimal places, if nessary.
?
A. 
B. 
C. 
D. ?
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Expand and simplify the given expression by use of Pascal's triangle.(6x + 1)4
A. 1296x3 + 864x2 + 24x - 1 B. 1296x4 + 864x3 + 216x2 + 24x + 1 C. 1296x4 + 864x3 + 216x2 + 24x - 1 D. 1296x3 + 864x2 + 216x + 24
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Use the method of adding y-coordinates to graph the function.g(x) = sin x - sin (2x)
A. 
B. 
C. 
D. 
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Without using a calculator, give the exact trigonometric function value with rational denominator.tan 60°
A. 
B. 
C. 
D. 
Mathematics