Sum of First n Terms of AP
Sum of First n Terms
Sum of N Terms of an AP: The sum of n terms when the AP is given
When l = Last term up to which the sum of A.P. is to find
For Example: Find the sum of first 10 terms of the given AP 34+ 37+ 40+....
Solution:
Substituting thevalue of 'a' and 'd ' and n in
Find the sum of 20 terms of the A.P. 1,4,7,10... | |||
| Right Option : D | |||
| View Explanation | |||
If a, b and c are in AP, then which of the following will also term an AP? | |||
| Right Option : A | |||
| View Explanation | |||
If the sum and the product of 1st 3 terms of an AP Series is 42 and 2240 respectively, what are the terms of the series? | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [10]
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