-257 -255 is equal toa 425b -425c -2512d 254

(a) 4/25 We have: nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; ...

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Addition of Integers

-257 ÷-255 is...

Question

${(\frac{- 2}{5})}^{7} \div {(\frac{- 2}{5})}^{5}$ is equal to
(a) $\frac{4}{25}$
(b) $\frac{- 4}{25}$
(c) ${(\frac{- 2}{5})}^{12}$
(d) $\frac{25}{4}$

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Solution

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Similar questions

{(\frac{- 2}{5})}^{7} \div {(\frac{- 2}{5})}^{5} = ?

\frac{4}{25}

\frac{- 4}{25}

{(\frac{- 2}{5})}^{12}

\frac{25}{4}

\frac{25^{4} \times 5^{2}}{25^{5}}

(2^{51} + 2^{52} + 2^{53} + 2^{54} + 2^{55})

(1 + x) (1 + x^{2}) (1 + x^{4}) \dots (1 + x^{128}) = n \sum r = 0 x^{r},

n

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 55

11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 + 19 + 20 = 155

21 + 22 + 23 + 24 + 25 + 26 + 27 + 28 + 29 + 30 = 255

101 + 102 + 103 + 104 + 105 + 106 + 107 + 108 + 109 + 110 = 1055

251 + 252 + 253 + 254 + 255 + 256 + 257 + 258 + 259 + 260 = 2555

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