Question

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

• A. 24
• B. 26
• C. -24
• D. -26

Answer 1

Answer:

C. -24

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

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

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

$\sqrt{576 }= 24$

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

$= -1 \times 24$

$= -24$