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slava [35]
3 years ago
14

Pls explain answer c and d?

Mathematics
1 answer:
slamgirl [31]3 years ago
7 0
\bf a^{\frac{ n}{ m}} \implies  \sqrt[ m]{a^ n} 
\qquad \qquad
\sqrt[ m]{a^ n}\implies a^{\frac{ n}{ m}}\\\\
-------------------------------\\\\
c)\\\\
f(x)=\cfrac{1}{\sqrt{x}}\implies f(x)=x^{-\frac{1}{2}}\implies \cfrac{dy}{dx}=-\cfrac{1}{2}x^{-\frac{1}{2}-1}\implies \cfrac{dy}{dx}=-\cfrac{1}{2}x^{-\frac{3}{2}}

\bf \cfrac{dy}{dx}=-\cfrac{1}{2}\cdot \cfrac{1}{x^{\frac{3}{2}}}\implies \cfrac{dy}{dx}=-\cfrac{1}{2}\cdot\cfrac{1}{\sqrt[2]{x^3}}\implies \cfrac{dy}{dx}=-\cfrac{1}{2\sqrt{x^3}}\\\\
-------------------------------\\\\
d)\\\\
f(t)=t^3+3t^2-6\implies \cfrac{dy}{dt}=3t^2+6t^1-0\implies \cfrac{dy}{dt}=3t^2+6t
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