Integrals Test ...

Evaluate : $$\displaystyle\int^1_0\sqrt{\dfrac{1-x}{1+x}}dx$$

Evaluate : $$\displaystyle\int^1_0\dfrac{dx}{(1+x+x^2)}$$

Evaluate : $$\displaystyle\int^a_{-a}\sqrt{\dfrac{a-x}{a+x}}dx$$

$$\displaystyle\int^a_{-a}x|x|dx=?$$

$$\displaystyle\int^1_{-2}\dfrac{|x|}{2}dx=?$$

Evaluate : $$\displaystyle\int^1_0|2x-1|dx$$

Evaluate : $$\displaystyle\int^{\sqrt{2}}_0\sqrt{2-x^2}dx$$

Evaluate : $$\displaystyle\int^1_0\dfrac{(1-x)}{(1+x)}dx$$

Evaluate : $$\displaystyle\int^2_{-2}|x|dx$$

Evaluate : $$\displaystyle\int^1_{-2}|2x+1|dx$$