Question

101/2*99/2 without actual multiplication using identity​

Answer 1

Answer:

2499.75

Step-by-step explanation:

$\frac{101}{2} \times \frac{99}{2} \\ = 50.5 \times 49.5 \\ = (50 + 0.5)(50 - 0.5) \\ = {(50)}^{2} - {(0.5)}^{2} \\ = 2500 - 0.25 \\ = 2499.75$