$(-1)^{121 }\times\sqrt{576}=?$

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A24

B26

C-24

D-26

Answer:

$(-1)^{121 }\times\sqrt{576}$

When $-1$ is raised to an odd power, the result is $-1$ .

$(-1)^{121 }= -1$

$\sqrt{576 }= 24$

$(-1)^{121} \times\sqrt{576}$

$= -1 \times 24$

$= -24$

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