find the product of 11 and 13 using suitable identity
Answers
Answered by
2
Answer:
143
Step-by-step explanation:
Answered by
2
Answer:
143
Step-by-step explanation:
11×13
(10+1)(10+3)
by using identity (x+a)(x+b)=x²+(a+b)x+ab
10²+(1+3)10+(1)(3)
100+40+3
143
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