Perform the indicated operations and simplify.
+ 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Determine convergence or divergence of the series.
A. Diverges B. Converges
Mathematics
Simplify the expression by using a sum or difference identity.cos 
cos 
+ sin 
sin 
A. 
B. 
C. - 1
D. 
Mathematics
Solve the problem.Which of the lines in the picture are lines of symmetry of the given figure?
A. l, m, n and o B. m and o C. l and n D. Only m
Mathematics
Find the partial derivative of the dependent variable or function with respect to each of the independent variables.f(x, y) = (4x4y5 + 3)2
A. 
= 16x3y5; 
= 20x4y4
B. 
= 40x4y4(4x4y5 + 3); 
= 32x3y5(4x4y5 + 3)
C. 
= 2(4x4y5 + 3); 
= 2(4x4y5 + 3)
D. 
= 32x3y5(4x4y5 + 3); 
= 40x4y4(4x4y5 + 3)
Mathematics