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$$\left(\sqrt{49}\right)^7 =$$
Correct. [[Snippet]] Convert the root to a fractional power (the power is the top of the fraction, and the root is the bottom of the fraction). >$$\left(\sqrt{49}\right)^7 = 49^{\frac{7}{14}}$$ Reduce the fractional exponent. >$$49^{\frac{7}{14}} = 49^{\frac{1}{2}}$$ Remember that an exponent of $$\frac{1}{2}$$ is the same as a square root (or you can directly convert back to a root using the above rule). >$$49^{\frac{1}{2}} = \sqrt{49} = 7$$
$$\sqrt{7}$$
$$7$$
$$\sqrt{14}$$
$$14$$