(4x-7)/16(x-√2)(x+√2)>0
x=1,75 x=√2 x=-√2
_ + _ +
--------------(-√2)---------------(√2)---------------(1,75)---------------
x∈(-√2;√2) U (1,75;∞)
Ответ в приложенном фото)
40:7,50=5.33333333
ответ; 5 сырков
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<span>4.01²-3.01²= (</span><span><span>4.01 - 3.01</span>)</span><span>(<span>4.01 + 3.01)</span> = 1 * 7,02 = </span><span>7,02
7.16²-2.84<span>²= (</span></span><span>7.16-2.84)(</span><span>7.16+2.84) = </span><span><span>4.32 * 10 = 43,2
5.71</span>²-4.29<span>²= (</span></span><span><span>5.71-4.29</span>)(</span><span><span>5.71+4.29</span>) = </span><span><span>1.42 * 10 = 14,2
</span>23.06²-16.94²=</span> (23.06-16.94)(23.06+16.94) = 6.12 * 40 = 244,8