Simplify the expression.
+ tan ?
A. sin2 ?
B. 1
C. cos ? + sin ?
D. sec ?
Answer: D
Mathematics
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Find all real numbers in the interval [0, 2?) that satisfy the equation.tan x + sec x = 1
A. 
B. 
C. 
D. No solution
Mathematics
Solve the system of equations by determinants. 7x - 4y = 9 -7x + 4y = 4
A. x = 9, y = 4 B. x = -1, y = -1 C. Dependent D. Inconsistent
Mathematics
Determine whether the graph represents a function.
A. A function B. Not a function
Mathematics
Simplify the expression.
A. 3
B. 3x32
C. 3x8
D. 15x32
Mathematics