If the first and fifth term's sum is 10, then the third term of an arithmetic progression is ______
Answers
Answered by
5
Answer:
a3=5
Step-by-step explanation:
GIVEN: a1+a5=10
a+a5=10
a5= a+(n-1)d
= a+(5-1)d
= a+4d
a+a+4d=10
2a+4d=10. a3=a+2d
a+2d=5 a3=5.
Divide every term by 2
Similar questions
Math,
1 month ago
Math,
1 month ago
Business Studies,
1 month ago
Geography,
2 months ago
Accountancy,
9 months ago
History,
9 months ago