Question

Plss give me the ans of this que there is more 2 que 1st give this and plss give right ans

Answer 1

Step-by-step explanation:

Qt no.2.i)

Given,

5^(-3)×5^n=5^4

5^n= 5^4÷5^(-3)

5^n= 5^{4-(-3)}

5^n= 5^{4+3}

5^n=5^7

As we know that, if bases are equal then powers are also equal.

Therefore:

n=7