Toán ck2 (c.Linh)

$$3^x\ln3+C$$

$$\frac{1}{x\ln3}+C$$

$$\frac{3^x}{\ln3}+C$$

$$\frac{\ln3}{3^x}+C$$

2cosx+sinx+C

2cosx-sinx+C

-2cosx+sinx+C

-2cosx-sinx+C

$$F\left(x\right)=x^2+x$$

$$F\left(x\right)=2x^2+x-3$$

$$F\left(x\right)=x^2+x-2$$

$$F\left(x\right)=x^2+x+1$$

$$\frac{1}{x}+\ln x$$

$$\frac{1}{x}+\ln\left|x\right|$$

$$\frac{1}{x}+\ln\left|x\right|+1$$

$$\frac{1}{x}+\ln\left|x\right|-1$$

$$\int_a^bf\left(x\right)dx=F\left(b\right)-F\left(a\right)$$

$$\int_a^af\left(x\right)dx=1$$

$$\int_a^af\left(x\right)dx=0$$

$$\int_a^bf\left(x\right)dx=-\int_b^af\left(x\right)dx$$

$$\int_a^bf\left(x\right)dx=F\left(b\right)-F\left(a\right)$$

$$\int_a^bf\left(x\right)dx=F\left(a\right)-F\left(b\right)$$

$$\int_a^bf\left(x\right)dx=F\left(b\right)+F\left(a\right)$$

$$\int_a^bf\left(x\right)dx=-F\left(b\right)-F\left(a\right)$$

$$S=\int_0^1\left(x^2+1\right)dx$$

$$S=\pi\int_0^1\left(x^2+1\right)dx$$

$$S=\int_0^1\left(x^2+1\right)^2dx$$

$$S=\pi\int_0^1\left|x^2-1\right|dx$$

$$S=\int_a^bf\left(x\right)dx$$

$$S=-\int_a^bf\left(x\right)dx$$

$$S=\pi\int_a^bf\left(x\right)dx$$

$$S=\pi\int_a^b[f\left(x\right)]^2dx$$

$$\overrightarrow{n_1}=\left(2;-1;-5\right)$$

$$\overrightarrow{n_2}=\left(2;1;-5\right)$$

$$\overrightarrow{n_3}=\left(2;1;5\right)$$

$$\overrightarrow{n_4}=\left(2;-1;5\right)$$

$$\overrightarrow{n_1}=\left(-1;1;1\right)$$

$$\overrightarrow{n_2}=\left(1;-1;1\right)$$

$$\overrightarrow{n_3}=\left(1;1;1\right)$$

$$\overrightarrow{n_1}=\left(1;1;-1\right)$$