A.\(x + y - 3 = 0\)
B.\(x - y = 0\)
C.\(x - y - 1 = 0\)
D.\(x - y + 1 = 0\)

A.\(S = \int\limits_a^b {f\left( x \right)dx} \)
B.\(\left| {S = \int\limits_a^b {f\left( x \right)dx} } \right|\)
C.\(S =  - \int\limits_a^b {f\left( x \right)dx} \)
D.\(S = \int\limits_a^b {\left| {f\left( x \right)} \right|dx} \)

A.\(\int {\left[ {f\left( x \right) - g\left( x \right)} \right]} dx = \int {f\left( x \right)dx - \int {g\left( x \right)dx} } \)
B.\(\int {2f\left( x \right)dx}  = 2\int {f\left( x \right)dx} \)
C.\(\int {\left[ {f\left( x \right) + g\left( x \right)} \right]dx}  = \int {f\left( x \right)dx}  + \int {g\left( x \right)dx} \)
D.\(\int {\left[ {f\left( x \right)g\left( x \right)} \right]dx}  = \int {f\left( x \right)dx} .\int {g\left( x \right)dx} \)

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

A.\(x - y + z = 0\)
B.\( - x - y + z = 0\)
C.\(x + y + z + 1 = 0\)
D.\(x - y + z - 1 = 0\)

A.\(\dfrac{{\sqrt 3 {a^3}}}{3}\)
B.\(\sqrt 3 {a^3}\)
C.\(\dfrac{{\sqrt 3 {a^3}}}{{12}}\)
D.\(\dfrac{{\sqrt 3 {a^3}}}{4}\)

A.\(\frac{{12}}{{49}}.\)
B.\(\frac{{77}}{{18}}\)
C.\(\frac{{135}}{{100}}\)
D.\(\frac{{13}}{{47}}\)

A.
B.
C.
D.

A.
B.
C.
D.

A.
B.
C.
D.