Question

Use formula to evaluate 201×199

Answer 1

Answer:

Hey mate here is your answer :-)

(200+1) (200-1)

(a+b) (a-b) =a²-b²

your answer is

(200)²-1²

4×10⁴ -1

Answer 2

Answer:

(200+1)(200-1)

(200)^2-(1)^2

40000-1

39999

Step-by-step explanation:

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