evaluate, using suitable identity: 1) 2.07*1.93
Answers
Answered by
24
Answer:
3.9951
Step-by-step explanation:
(2 + 0.07)(2 - 0.07)
= (2^2) - (0.07^2)
= 4 - (49 × 0.0001)
= 4 - 0.0049
= 3.9951
Answered by
5
Concept :
Let us know an algebraic identity before we solve the problem. If and
be two numbers such that
, then we have the following identity:
Step-by-step explanation:
We write:
So,
- Now we apply the identity written in the Concept part of this answer.
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