Find the value of the following expression when $n = - 2$ for $5 n - 2$ .

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Solution

Putting the value of $n = - 2$ , in $5 n - 2$ , we get,
$(5) (- 2) - 2 = - 10 - 2 = - 12$

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n = 2

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Find the value of $^{n} C_{0}$ 4 + $4^{2}$ × $\frac{^{n} C_{1}}{2}$ + ......... $\frac{4^{n + 1}}{n + 1}$ × $^{n} C_{n}$

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n .

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{(\frac{- 2}{3})}^{4} \div {(\frac{- 2}{3})}^{3} = {(\frac{- 3}{2})}^{n}

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