Math, asked by sakshipriya383932, 5 months ago

Find 195*20.5 using an identity

Answers

Answered by Anonymous

3

Step-by-step explanation:

3 997.5 is your answer

Answered by architagupta83

2

Answer:

3997.5

Step-by-step explanation:

195*20.5

=(200-5)*(200+0.5)

=200² - 5*0.5 (a +b) (a-b) = a²-b²)

=40000-2.5

=3997.5

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