∫ dx/(ax²+bx+c): discriminant cases (Complete square; D>0 → logs; D<0 → (1/sqrt)arctan; D=0 → power.)
jee-mainjee-advanced
Complete square; D>0 → logs; D<0 → (1/sqrt)arctan; D=0 → power.
What each symbol means
| Symbol | What it stands for |
|---|---|
| D | b^2-4ac |
When to use this
Factor out a from quadratic first.