1.

Find the value of n and x 72n-1​

Answer»

Answer:

we KNOW that,

∵

a

n

a

m

=a

m−n

so,

7

2

7

2n+1

=7

2n+1−2

=7

2n−1

now,

⟹7

2n−1

=7

3

As BASES are equal

powers are equal

2n−1=3

n=2


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