find n in the above problem??
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2^ n-7 × 5 ^n-4 = 1250
2^ n-4 × 2^-3 × 5 ^ n-4 = 2^1 × 5^4
2^n-4 × 5^n-4 /2^3 = 2^1× 5^4
(10)^n-4 = ( 10)^4
n-4 = 4
n = 4+4
n = 8
Hope, it helped☻☻☻
2^ n-4 × 2^-3 × 5 ^ n-4 = 2^1 × 5^4
2^n-4 × 5^n-4 /2^3 = 2^1× 5^4
(10)^n-4 = ( 10)^4
n-4 = 4
n = 4+4
n = 8
Hope, it helped☻☻☻
AnkitSarkar:
3 rd line can't understand
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