Find the square of 189 using the identity (a-b) whole square
Answers
Answered by
35
(189)^2
(190 - 1)^2
By using given identity,
(190)^2 + (1)^2 - 2(190 × 1)
36100 + 1 - 380
36101 - 380
35721
i hope this will help you
(-:
(190 - 1)^2
By using given identity,
(190)^2 + (1)^2 - 2(190 × 1)
36100 + 1 - 380
36101 - 380
35721
i hope this will help you
(-:
Reborn66:
thanx
welcome
189 = (200-11) = (200-11)^2 = (200)^2 +(11)^2 - 2×200×11 = 40000+121-4400 = 40121-4400 = 35721 Is this way correct
yes
Thank you
Answered by
12
hey friend here is your ans..
189= (200-1)^2
=200^2 + 11^2 - (2×200×11)
=40000+121-4400=
=40121-4400
=35721
189= (200-1)^2
=200^2 + 11^2 - (2×200×11)
=40000+121-4400=
=40121-4400
=35721
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