Find all real numbers in [0, 2?] that satisfy the equation.2 cos x + 1 = 0
A. 
B. 
, 
C. 
, 
D. 
, 
Answer: B
Mathematics
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Determine whether the integration formula is correct. 
= 
+ C
A. No B. Yes
Mathematics
Use properties of multiplication to multiply.5 ? 1
A. 0 B. 15 C. 5 D. 1
Mathematics
Subtract. 9 - (-9)
A. 18 B. 0 C. -18 D. 9
Mathematics
Simplify the expression. Write with only positive exponents. Assume that variables represent positive real numbers.z-2/5z3/5
A. z1/5 B. z6/5 C. z-1/5 D. z5/6
Mathematics