Question

Which is the exponential form of log7 90 = y?

Answer 1

that would be

90 = 7^y

Answer 2

Answer: The required exponential form of the given equation is

`7^y=90.`

Step-by-step explanation: We are given to write the exponential form of the following logarithmic equation :

`\log_790=y.`

We will be using the following property of logarithms :

`\log_ab=c~~~\Rightarrow b=a^c.`

Therefore, the given equation implies that

`\log_790=y\\\\\Rightarrow 90=7^y\\\\\Rightarrow 7^y=90.`

Thus, the required exponential form of the given equation is

`7^y=90.`