Question

-12с3 при с=- 1_ 2

Answer 1

$-12c^{3}$

 

при $c=-\frac{1}{2}$

 

$-12\cdot(-\frac{1}{2})^{3}=-12\cdot(-\frac{1}{8})=\frac{3}{2}=1,5$

Answer 2

Решение вместо (с) подставить 1/2                                                                           -12.(-1/2)3=-12.(-1/8)=3/2=1,5    минус в третьей степени дает плюс.

Answer 3

To evaluate the expression -12c3 when c is equal to -1/2, we substitute -1/2 for c in the expression:

-12(-1/2)^3

To simplify, we start by calculating (-1/2)^3:

(-1/2)^3 = -1/2 * -1/2 * -1/2 = -1/8

Now, we substitute this value back into the expression:

-12(-1/8) = 12/8 = 3/2

Therefore, when c is equal to -1/2, the value of -12c3 is 3/2.