what is 41*42 find using identites
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
hi jajavk bjkgagiahavagajajavbajakqjq
Answer:
41×42
Using identity = (x+ a) (x+ b) = x²+ (a+b)x + ab
= (40+1)(40+2)
= (40)² + (1+2)40 + 1×2
= 1600+120+2
= 1722