Question

Use suitable identity to find the following: 501×502

Answer 1

Answer:

501×502 = 251502

Step-by-step explanation:

use the Identity :- (x + a) (x + b) = x² + (a + b) x + ab

501×502 = (500+1) × (500+2)  ,    [ here x= 500, a=1, b=2]

                = 500^2 + (1+2)500 + 1×2

                =250000 + 1500 +2

                = 251502

Answer 2

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