Solve the given trigonometric equation analytically (using identities when necessary for exact values when possible) for values of x for 0 ? x < 2?.sin2 x - cos2 x = 0
A. 
, 
B. 
, 
C. 
, 
, 
, 
D. 
Answer: C
Mathematics
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The argument has a true conclusion. Identify the argument as valid or invalid.10 is a real number.
10 is 
.
A. Valid B. Invalid
Mathematics
Perform the indicated operation.Subtract (12a5 - 14a3) from (-8a5 + 3a3).
A. 4a5 - 11a3 B. -20a5 - 11a3 C. -20a5 + 17a3 D. -3a8
Mathematics
Solve the absolute value equation.
= |-3|
A. 
B. 
C. 
D. ?
Mathematics
Find the surface area of the solid correct to the nearest square unit. (Note that the container does not have top.)
?
??r? = 2.8?, ?h? = 4.4.
?
?
A. 77 cm 2 B. 12 cm 2 C. 204 cm 2 D. 102 cm 2 E. 108 cm 2
Mathematics