関連ワード:  how to get the first term in geometric sequence    how to solve the first term in geometric sequence    how to find first term in geometric sequence with common ratio    how to find first term in geometric sequence without common ratio    how to find the missing first term in geometric sequence    how to find the first term in geometric progression    how to find the first term in geometric series    how to find 1st term in geometric sequence    first term in geometric sequence  
結果 : how to get the first term in geometric sequence