The value of ${7.3}^{2} - {2.7}^{2}$ is equal to

$46$

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$48$

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$50$

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$42$

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Solution

The correct option is A
$46$

The given expression is ${7.3}^{2} - {2.7}^{2}$ which can be written as

$= (7.3 + 2.7) (7.3 - 2.7)$ $[a^{2} - b^{2} = (a + b) (a - b)]$

$= 10 \times 4.6$

$= 46$

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Similar questions

Compute the value of ${2.7}^{2} - {1.3}^{2}$

f (0) = 1, f (1) = 2.72

\int_{0}^{1} f (x) d x

e = 2.72, e^{2} = 7.39, e^{3} = 20.09

e^{4} = 54.60

\int_{0}^{4} e^{x} d x

h = 1

e^{sin x} - e^{- sin x} = 4, (e \approx 2.72)

λ = 4500 o A

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