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1.2: Показники та наукові позначення
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Математики, вчені та економісти зазвичай стикаються з дуже великими і дуже малими цифрами. Але може бути не очевидно, наскільки поширені такі цифри в повсякденному житті.
1.3: Показники та наукові позначення
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$x^2\times x^5\times x^3=(x^2\times x^5) \times x^3=(x^{2+5})\times x^3=x^7\times x^3=x^{7+3}=x^{10} \nonumber$ c.\[\begin{align*} \left ( \dfrac{u^{-1}v}{v^{-1}} \right )^2 &= \dfrac{(u^{-1}v)^2}{(... $x^2\times x^5\times x^3=(x^2\times x^5) \times x^3=(x^{2+5})\times x^3=x^7\times x^3=x^{7+3}=x^{10} \nonumber$ c. $\begin{align*} \left ( \dfrac{u^{-1}v}{v^{-1}} \right )^2 &= \dfrac{(u^{-1}v)^2}{(v^{-1})^2} && \text{ The power of a quotient rule}\\ &= \dfrac{u^{-2}v^2}{v^{-2}} && \text{ The power of a product rule}\\ &= u^{-2}v^{2-(-2)} && \text{ The quotient rule}\\ &= u^{-2}v^4 && \text{ Simplify}\\ &= \dfrac{v^4}{u^2} && \text{ The negative exponent rule} \end{align*}$