<span>(a^3-a)/(a^4-1)=(<span>(a-1)a(a+1))/(<span>(a-1)(a+1)(a^2+1)</span>)</span>=<span>a/(a^2+1)</span></span>
Ответ:
Объяснение:
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Ответ :(1-sin t)(1+sin t)
Limx³(1/x³-5/x²)/x³(1+1/x)=lim(1/x³-5/x²)/(1+1/x)=(0-0)/(1+0)=0/1=0
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