Evaluate (11)² using which identity?
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.
Step-by-step explanation:
Here is your answer
(11)^2
By identity
(a + b) = a^ +2(a)(b) + b^2
=(10 + 1)^2
=(10)^2 + 2(10)(1) + (1)^2
= 100 + 20 + 1
= 121
Hope it's clear to u
please follow me
Mark me as brainlist
Given
Evaluate (11)² using identity
Solution
✒ We can solve by applying two Identities
➠ (12 - 1)²
➠ (12)² + (1)² - 2 × 12 × 1
➠ 144 + 1 - 24
➠ 145 - 24
=> 121
➠ (10 + 1)²
➠ (10)² + (1)² + 2 × 10 × 1
➠ 100 + 1 + 20
➠ 101 + 20
➠ 121
Some identities