Find Sum of N Terms When A.P. and Last Term is Given
Find Sum of N Terms When A.P. and Last Term is Given
Sum of N Terms When First Term, Last Term is Given: The sum can be found by using the formula.
For using this formula we will first find the number of terms
Example : Find the sum for the given A.P. 34+ 32+ 30+....+10
Solution: Here, the last term is given. We will first have to find the number of terms.
Using We have
If the first term, the last term and the sum of all the terms of an AP are 14, 62 and 646 respectively the number or terms in the AP is _____________- | |||
| Right Option : B | |||
| View Explanation | |||
Which of the following values is the sum of the AP : 2, 4, 6,..........200? | |||
| Right Option : C | |||
| View Explanation | |||
Which of the following values is the sum of the AP -12,-11,.....11? | |||
| Right Option : C | |||
| View Explanation | |||
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