using suitable identities find the value of 11×9
Answers
Answered by
14
(10+1)*(10-1)
10 Square - 1 Square
100-1
99
Hope it helps you........
Answered by
5
Answer:
99
Step-by-step explanation:
(10+1) (10-1)
10^2-1^2
100-1
99
Hence 11×9=99
Similar questions
English,
5 months ago
Hindi,
5 months ago
Computer Science,
5 months ago
Environmental Sciences,
10 months ago
Math,
10 months ago
Physics,
1 year ago
Math,
1 year ago