if 2^n-7*5n^-4=1250,find the value of n
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Answered by
5
2^n -7 *5^n- 4 = 1250
2^n -7 *5^n- 4 = 2 * 625
2^n -7 *5^n- 4 = 2^1 * 5^4
Taking, 2^{n - 7} = 2^{1}
⇒ n - 7 = 1
⇒ n = 1 + 7
⇒n = 8
Answered by
5
Step-by-step explanation:
2n-7*5n-4=1250
=>2n-7*5n-4=2*625
=>2n-7*5n-4=21*54
on comparing values we get
taking 2n-7=21
n-7=1
n=1+7
n=8
Hope it will help you .❤
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