Let 
. Find the value of the function.
?
??
A. 
B. 
C. 
D. 
E. 
Answer: B
Mathematics
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Show that the equation is not an identity by listing the value(s) of the variable from among 0, 
, 
, and - 
for which the equation is false.sin2? = cos2?
A. 
and - 
B. 0 and 
C. 
D. - 
Mathematics
Given that the x- and y-coordinates of a moving particle are given by the indicated parametric equations, find the magnitude and direction of the velocity for the specific value of t.x = 8t + 6, y = -9t + 3, t = 4
A. 50.33, 311.6° B. 12.04, 311.6° C. 50.33, 131.6° D. 12.04, 131.6°
Mathematics
Evaluate.-7 + 8 ? 3
A. 168 B. 31 C. 17 D. 32
Mathematics
Subtract. 9n7 - 7n5 + 20
A. 6n7 + 9n5 + 16 B. 6n7 - 4n5 + 16 C. 6n7 + 9n5 + 24 D. 39n12
Mathematics