NDA2013MathematicsIndefinite IntegrationActual
What is d x 4+x^2 equal to? where c is an arbitrary constant.
Options
- A| 4+x^2 +x |+c
- B| 4+x^2 -x |+c
- C⁻¹ ( x 2 )+c
- DNone of the above
Correct answer
A. | 4+x^2 +x |+c
Step-by-step solution
aligned & I = d x x^2+4 = d x x^2+(2)^2 & Let x=2 & d x=2 ^2 d & 2 ^2 d 2^2 (1+ ^2 ) = d & = ( + )+C= (x+ x^2+4 )+C aligned