Determine whether the statement is true or false.sin 120° = 2 sin 60° cos 60°
A. True
B. False
Answer: A
Mathematics
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Find the number of proper subsets of the set.{5, 6, 7}
A. 6 B. 7 C. 5 D. 2
Mathematics
Use a combination of rules for exponents to simplify. Write answers with only positive exponents. Assume that all variables represent nonzero real numbers.t-8 ? t4 ? t-6
A. 
B. 
C. t18
D. t10
Mathematics
Subtract.4 - 12
A. -16 B. -8 C. 16 D. 8
Mathematics
Write the expression in the standard form a + bi.(
+ i)5
A. 16 - 16
i
B. 16
- 16i
C. -16
+ 16i
D. 9
+ 5i
Mathematics