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Find the sum of 10 terms of the series 1+sqrt(3)+3+….

Explain the following terms: Triangle (ii) parts or elements of a triangle Scalene triangle (iv) isosceles triangle Equilateral triangle (vi) acute triangle Right triangle (viii) obtuse triangle Interior of a triangle (x) exterior of a triangle.

Find the sum to 10 terms oif the series 1+3+6+10+…..

The next term of the series 1, 2, 4, 8, .... is:

In the 20th row of the triangle 1 2 3 4 5 6 7 10 (A) last term = 210 (B) first term = 191 (C) sum = 4010 (D) sum = 4200

Find the sum to n terms of the series (1)+(1+a)+(1+a+ a^(2)) cdots .

The first term of an AP.of consecutive integer is p^(2)+1. The sum of (2p+1) terms of this series can be expressed as

An arithmetic series consists of 2n terms, and the first term equals the value of the common difference. If a new series is formed taking the 1st, 3rd, 5th,... (2n – 1) th term of the old series, find the ratio of the sum of the new series to that of the sum of the terms of the old series.