Find the extreme values of the function subject to the given constraint.
A. Maximum: 6 at 
minimum: 3 at 
B. Maximum: 6 at 
minimum: -3 at 
C. Maximum: 11 at (6, 3, 2), (6, 2, 3), (3, 2, 6), (3, 6, 2), (2, 3, 6), (2, 6, 3); minimum: 1 at 
D. Maximum: 9 at 
minimum: 3 at 
Answer: C
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For the curve r(t), find an equation for the indicated plane at the given value of t.r(t) = (t - 4)i + (ln(sec t) - 1)j + 4k, -?/2 < t < ?/2; normal plane at t = 6?.
A. x = 4 - 6? B. x = 6? + 4 C. x = -6? - 4 D. x = 6? - 4
Use a vertical format to add the polynomials.- 
x2 - 
x + 
A. - 
x4 + 
x2 + 
B. 
x2 - 3x + 
C. - 
x6 + 
D. - 
x2 + 
x + 
Write the relationship as a formula.If two capacitors C1 and C2 are connected in series, the total capacitance Ct is found by dividing the product of the two capacitances by their sum.
A. Ct = 
B. Ct = 
2
C. Ct = 
D. Ct = 
Fill in the blank with the correct inequality symbol.If x < -10, then x + 10 
0.
A. > B. ? C. < D. ?