Question

r cube is equal to 9 then r is​

Answer 1

Step-by-step explanation:

r*3 = 9

that is r × r*2 = 9

r*2 = 9/r

r = root 9/root r

r = 3/root r

Answer 2

R cube is equal to 9 then R is​​ $\mathbf{3^{\frac{2}{3}}}$

Step-by-step explanation:

• Given that R cube is equal to 9 then R is​

        R³ = 9

• Where 9 is square of 3. So we can write R.H.S of above equation

        R³ = 3²

• Taking cube root on both side of equation, we will get

        $\mathbf{(R^{3})^{\frac{1}{3}}=(3^{2})^{\frac{1}{3}}}$

• Above equation can be written as

        $\mathbf{(R)^{\frac{3\times 1}{3}}=(3)^{\frac{2\times 1}{3}}}$

• After solving exponent of L.H.S and R.H.S of equation, we will get

        $\mathbf{R=3^{\frac{2}{3}}}$