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Evaluate 109 x 91, using the suitable identity
CBSE Class 9
CBSE Class 9 Maths
class-9-maths
Veerendra
April 8, 2019, 5:06am
1
Evaluate 109 x 91, using the suitable identity.
Veerendra
April 8, 2019, 5:07am
2
We have, 109 x 91 = (100 + 9) x (100 - 9)