Question

Sadvidya High School, Vijayanagara, Mysuru
Class: X
Sub: Mathematics
Work Sheet
0.2
If an
Do as directed:
Topic: Circles and Arithmetic Progression
1. Find the sum of the odd numbers between 0 and 50.
2.
5n-3 find the A.P. and hence find the sum up to 35 terms.
3. If the 3rd and the 9th terms of n A.P. are 4 and -8 respectively, which term of this A.P.
is zero?
Find the middle term of the A.P. 10,7,4, ..........., (-62).
5. If the 10th term of an A.P. is 52 and the 17th term is 20 more than the 13th term, find
the A.P.
6.
The sum of first six terms of an arithmetic progression is 42. The ratio of its 10th term
to the 30th term is 1:3. Calculate the first and the thirteenth term of the A.P.
7. The interior angles of a polygon are in A.P. the smallest angle is 120° and the common
difference is 5º.find the number of sides of polygon.
1 1
are in A.P.
8. If a?,b2 and c2 arte in A.P, prove that
b+c'cta'a+b
9. The angles of a triangle are in A.P. the least being half the greatest. Find the angles.
10. If the mth term of an A.P. is 1/n and the nth term is 1/m, show that the sum of mn
terms is 2 (mn+1).
1​

Answer 1

Answer:

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