Simplify the expression.
+ tan ?
A. sec ?
B. cos ? + sin ?
C. sin2 ?
D. 1
Answer: A
Mathematics
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Solve the problem.Given the area A of a circle, the formula r = 
can be used to calculate the radius of the circle. Find the area when the radius is 7.7 cm.
A. A = 59.29 sq cm B. A = 61.15? sq cm C. A = 59.29 ?2 sq cm D. A = 59.29? sq cm
Mathematics
Determine the quadrant in which the terminal side of angle ? lies.sin ? > 0 and cos ? < 0
A. Quadrant II B. Quadrant IV C. Quadrant III D. Quadrant I
Mathematics
Solve the equation.log1/2(x + 6) = -7
A. 134 B. 140 C. 128 D. 122
Mathematics
The value for which Newton's method fails for the function below is shown in the graph. Give the reason why the method fails.
?
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics