201×199 use a special products
Answers
Answered by
9
(200+1)(100+90+9)
200(100+90+9)+1(100+90+9)
20000+18000+1800+100+90+9
39999
200(100+90+9)+1(100+90+9)
20000+18000+1800+100+90+9
39999
Answered by
18
201 = 200+1
199 = 200-1
Now,
Given = 201× 199
Then,
(200+1)(200-1) [(A+B)(A-B) = A²-B²
= 200²-1²
= 40000-1
= 3999
★ AhseFurieux ★
199 = 200-1
Now,
Given = 201× 199
Then,
(200+1)(200-1) [(A+B)(A-B) = A²-B²
= 200²-1²
= 40000-1
= 3999
★ AhseFurieux ★
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