Power PlayClass 8 Mathematics Assertion & Reason Questions

Assertion (A): The value of $5^{-2}$ is $\frac{1}{25}$.

Reason (R): For any non-zero integer $n$ and positive integer $a$, the law of exponents states that $n^{-a} = \frac{1}{n^a}$.

Assertion (A): The value of $(-1)^{56}$ is 1.

Reason (R): If a negative number is raised to an even power, the result is always positive.

Assertion (A): The value of $(2^0 + 3^0 + 4^0)$ is 3.

Reason (R): For any non-zero number $x$, the value of $x^0$ is 1.