A.\(T = 1\)
B.\(T = 2\)
C.\(T = 112\)
D.\(T = 130\)

A.\(\dfrac{{ - 2\sqrt 2 }}{3}\)
B.\( - 2\sqrt 2 \)
C.\(\dfrac{{ - 1}}{{2\sqrt 2 }}\)
D.\( - \sqrt 2 \)

A.\( - \dfrac{{31}}{{15}}\)
B.\(\dfrac{{49}}{{15}}\)
C.\( - \dfrac{{49}}{{15}}\)
D.\(\dfrac{{31}}{{15}}\)

A.\(\dfrac{4}{9}\)
B.\( - \dfrac{4}{9}\)
C.\(\dfrac{2}{9}\)
D.\( - \dfrac{2}{9}\)

A.\(A = \cot \alpha \)
B.\(A = \sqrt 2 \cot \alpha \)
C.\(A = \sqrt 2 \tan \alpha \)
D.\(A = \tan \alpha \)

A.\(\dfrac{{3\sin \alpha }}{{5 - 3\cos \alpha }}\)
B.\(\dfrac{{3\cos \alpha }}{{5 + 3\cos \alpha }}\)
C.\(\dfrac{{3\cos \alpha }}{{5 - 3\cos \alpha }}\)
D.\(\dfrac{{3\sin \alpha }}{{5 + 3\cos \alpha }}\)

A.\(A = \dfrac{3}{4}\)
B.\(A = \dfrac{9}{{16}}\)
C.\(A = \dfrac{9}{{32}}\)
D.\(A = \dfrac{4}{3}\)

A.\(\dfrac{1}{3}\)
B.\( - \dfrac{1}{3}\)
C.\(\dfrac{{2\sqrt 2 }}{3}\)
D.\( - \dfrac{{2\sqrt 2 }}{3}\)

A.\(1\)
B.\( - 1\)
C.\( - 2\)
D.\(2\)

A.Đồng bằng sông Hồng, Bắc Trung Bộ.
B.Bắc Trung Bộ, Đông Nam Bộ.
C.Đông Nam Bộ, Đồng bằng sông Cửu Long.
D.Đồng bằng sông Cửu Long, Đồng bằng sông Hồng.