(A)(−2, −1)
(B)(−2, 1)
(C)(1, 1)
(D)(1, −1)
4.Which of the following functions is continuous at x = 3 ?
(A)f(x) =
(B)g(x) =
(C)h(x) =
(D)j(x) =
5.Which of the following is the equation of the tangent line to y = 3 sin^2 x at x = ?
(A)y− = 3
(B)y + =
(C)y− =
(D)y− = 3
6.What is ?