Question

Urgent please help only serious answers

Answer 1

The correct answer is option B
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Explanation of the answer:
By substitution with n = 1 in the given formula we will get

`a_(1)= 5 *( - (1)/(8))^(n-1) = 5 *( - (1)/(8))^(1-1) =5 *( - (1)/(8))^0 = 5`
Which is agree with the option B