Consider the following statements:
1. The Laplace transform of the unit impulse function is s × Laplace transform of the unit ramp function.
2. The impulse function is a time derivative of the ramp function.
3. The Laplace transform of the unit impulse function is s × Laplace transform of the unit step function
4. The impulse function is a time derivative of the unit step function.
Which of the above statements are correct ?
1
1 and 2 only
2
3 and 4 only
3
2 and 3 only
4
1, 2, 3 and 4