Question

which is equivalent to this equation

Answer 1

Answer:

The correct option is (b).

Step-by-step explanation:

We need to find the value of the given expression i.e.

3⁷ × 3⁻⁴

We know that, one of the property of exponent is:

$x^{-a}=\dfrac{1}{a}$

So,

$3^7\times 3^{-4}=3^7\times \dfrac{1}{3^4}\\\\=3^3\\\\=27$

Hence, the correct option is (b).