- #1
Ocis
- 24
- 0
Firstly apologies for the calculation, where can I use equation editing software/fonts?
Show that :
dx = 1/6ln(7/4) where the limits are : b = 5 and a = 4
x^2 -9
I know that if the denominator was x^2 + 9 I could use 1/a tan-1 x/a + C . But do not know how to attempt this - does it involve the substitution of a trig identity, if so which one...? Thank you.
Show that :
dx = 1/6ln(7/4) where the limits are : b = 5 and a = 4
x^2 -9
I know that if the denominator was x^2 + 9 I could use 1/a tan-1 x/a + C . But do not know how to attempt this - does it involve the substitution of a trig identity, if so which one...? Thank you.