Simplify the expression.
? 
2
A. 
sin2 x
B. 
sin3 x
C. 
sin3 x
D. 4 sin3 x
Answer: C
Mathematics
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Use Pascal's triangle to expand the binomial.(a - y)6
A. a6 - 6a5y - 30a4y2 + 120a3y3 + 360a2y4 - 720ay5 - 720y6 B. a6 - 6a5y + 15a4y2 - 20a3y3 + 15a2y4 - 6ay5 + y6 C. a6 - y6 D. a6 - 8a5y + 17a4y2 - 22a3y3 + 17a2y4 - 8ay5 + y6
Mathematics
Reduce the fraction to simplest form.
A. 
B. 
C. Cannot be simplified
D. 
Mathematics
Evaluate the expression for the given value of the variable.z2 + 5z + 7 for z = -3
A. 17 B. 1 C. -13 D. 31
Mathematics
Find the limit.
A. 
B. 1
C. 0
D. 8
Mathematics