Integrals

Question 1

1/x

Answer 1

ln|x|+C

Question 2

tanx

Answer 2

ln|secx|+C

Question 3

cotx

Answer 3

-ln|cscx|+C

Question 4

secx

Answer 4

ln|secx+tanx|+C

Question 5

cscx

Answer 5

-ln|cscx+cotx|+C

Question 6

1/(x^2+a^2)

Answer 6

1/atan^-1(x/a)+C

Question 7

1/(x(x^2-1)^(1/2))

Answer 7

sec^-1|x|+C