CHALLENGE
- The curve 2x^2 y + y^2 = 2x + 13 passes through (3, 1). Use the line tangent to the curve there to
find the approximate value of y at x = 2.8.
(A) 0.5
(B) 0.9
(C) 0.95
(D) 1.1
(E) 1.4
32.
(A)
(B)
(C)
(D)
(E)- The region bounded by y = tan x, y = 0, and is rotated about the x-axis. The volume
generated equals
(A)
(B)
(C)
(D)
(E) none of these - for the constant a > 0, equals
(A) 1
(B) a
(C) ln a
(D) log 10 a
(E) a ln a