Given that the 5th term and 6th term of an arithmetic sequence of 10 terms are 17 and 20 respectively.
a) Calculate what is the common difference? Explain with steps.
b) Calculate what is the sum of the first 10 terms ? Explain with steps?
Answer
Class 10 Mathematics - Chapter - 1 - Examination preparation - Calculate what is the common difference and sum of the first 10 terms, Given that the 5th term and 6th term of an arithmetic sequence of 10 terms are 17 and 20 respectively