Question

2. By what number should we multiply (2) so that the product may be equal to (2-')?​

Answer 1

Let required no. be x

So

x × 2 = -2

x = 2 /-2 = -1

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Answer 2

Answer:

Let the required number be K,

Given, Product of K and 2^( - 5 ) is equal to 2^( - 1 )

=> 2^( - 5 ) × k = 2^( - 1 )

$$\begin{lgathered}= > K = \frac{ {2}^{ - 1} }{ {2}^{ - 5} } \\ \\ \\ => K = {2}^{ - 1 - ( - 5)} \\ \\ \\ = > K = {2}^{ - 1 + 5} \\ \\ \\ => K = {2}^{4}\end{lgathered}$$

Hence, Required number is 2⁴