Math, asked by gungun43112, 1 year ago

1.05*9.5 use identities


littyissacpe8b60: Are you sure it is 1.05? not 10.5?
gungun43112: yes
littyissacpe8b60: 10.5?
littyissacpe8b60: If it is 1.05 and 9.5 then question is wrong because you can't use identities
littyissacpe8b60: Can I do with 10.5?

Answers

Answered by JonahPrashanth
13

1.05 = 105 / 100

9.5 = 95 / 10

1.05*9.5

\frac{100+5}{100} * \frac{100-5}{10}

\frac{100^{2} - 5^{2}}{1000}

\frac{9975}{1000}

9.975

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