Between each pair of terms in this sequence is the amount the sequence is decreasing by. The 𝒏th term refers to a term's position in the sequence, for example, the first term has 𝒏 = 1, the second ...

I'm working on a challenge problem that was posted at school. I'm not looking for an answer, but rather a nudge in the right direction to be able to figure the problem out on my own.<BR><BR>The ...

The first question in the above image is based on the relation of Arithmetic series and Geometric Series. The second question in the above image is based on the formula of sum of geometric series. The ...