Question

find the value of 1 Cube + 2 cube + 3 Cube + 8 square power minus 5 upon 2​

Answer 1

Answer:

100

Step-by-step explanation:

1 cube + 2 cube +3 cube +8 square

1 + 8 + 27 + 64

9+ 27 + 64

36 + 64

100

Answer 2

The required value is $\frac{1}{10000}$

Step-by-step explanation:

$(1^{3} +2^{3} +3^{3} +8^{2})^{-\frac{5}{2}}\\\\=((1\times1\times 1) +(2\times2\times2) +(3\times 3\times 3) +(8\times8\times8))^{-\frac{5}{2} }\\\\=(1+8+27+64)^{-\frac{5}{2} }\\\\=(100)^{-\frac{5}{2} }$

we know that $x^{-a} =\frac{1}{x^{a} }$

$=\frac{1}{(100)^{\frac{5}{2} }}$

Again $\sqrt{x} =x^{\frac{1}{2} }$

$=\frac{1}{(\sqrt{100})^5 }\\\\=\frac{1}{10^{5} }\\\\=\frac{1}{10000}$

Learn More:

Find x such that 3^x+2=3^x + 216

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