Evaluate the integral: \(\int tan^8\ x\ sec^4\ x\ dx\)

4

(a)

Evaluate the integral: \(\int{x^2\over x^4+x^2-2}dx\)

4

(a)

Evaluate the integral: \(\int {\sqrt{1+x^2}\over x^4}dx\)

4

(a)

Integrate: \(\int^{\pi}_{0}x.sin\ x\ cos^2\ x\ dx\)

4

(a)

Integrate:\(\int^{1}_{0}{dx\over e^x+e^{-x}}\)

4

(a)

Evaluate the following integral
\(\int \sqrt{\frac{1+x}{1-x}} d x, x \neq 1\)

4

(a)

Evaluate the following integral.
\(\int \frac{(2 x-1)}{(x-1)(x+2)(x-3)} d x\)

4

(a)

Evaluate the following integral 
\(\int \sqrt{5-2 x+x^{2}} d x\)

4

(a)

Evaluate the following as limit of sum 
\(\int_{-1}^{2}(7 x-5) d x\)

4

(a)

Evaluate the following integral.
\(\int_{0}^{1} x\left(\tan ^{-1} x\right)^{2} d x\)

4

(a)