Simplify.
A. 1
B. 
C. 0
D. -1
Answer: A
Mathematics
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Calculate the number of subsets and the number of proper subsets for the set.
A. 14; 15 B. 15; 16 C. 16; 15 D. 15; 14
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Multiply the complex numbers and simplify powers of i.(8 - 8i)(6 - 5i)
A. 8 - 88i B. 88 - 8i C. 8 + 88i D. 40i2 - 88i + 48
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Determine the symmetries of the curve.r = 6 cos 5?
A. x-axis, y-axis, origin B. Origin only C. x-axis only D. y-axis only
Mathematics