(A)
(B)
(C)
(D)
(E)
40.(B)
(C)
(D)
(E)41.(A)
(B)
(C)
(D)
(E)42.(A)point where x = −1?
x < 0
x > −2
−2 < x < 2
x ≠ ±2
none of these; no solution exists for x = −1
The slope field shown here is for the differential equationy′ = ln x
y′ = ex
y′ = y
y′ = −y^2
If we substitute x = tan θ, which of the following is equivalent to
?BC ONLY QUESTIONS 42–57
If x = 2 sin u and y = cos 2u, then a single equation in x and y is