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If Any Terms Of An Ap Is Non Zero And D Not Equal 0 Then Sigma R Equal 1 To N 1 1 By Ar

(1) n/a1an (2) (n-1)/a1an (3) (n+1)/a1an (4) 2n/a1an Solution: = = = = = = = Hence option (2) is the answer.... View Article

2 Plus 6 Plus 12 Plus 20 Plus 30 Plus 100 Terms

(1) 1020300/3 (2) 1030200/3 (3) 1003200/3 (4) 1023200/3 Solution: 2 + 6 + 12 + 20 + 30 + ... = (12+1) + (22+2) + (32+3)+...upto... View Article

The Sum Of The Series Log4 2 Log8 2 Plus Log16 2 Is

(1) e2 (2) loge 2 + 1 (3) loge 3 - 2 (4) 1 - loge 2 Solution: Given S = log4 2 - log8 2 + log16 2 - … S = ½ - ⅓+ ¼-.... We use... View Article

If Alpha Beta Are The Roots Of The Equation X Square Px Plus Q Equal 0 Then The Values Of Alpha Plus Beta X Is

(1) log(1- px + qx2 ) (2) log(1 + px - qx2 ) (3) log(1 + px + qx2 ) (4) None of these Solution: Given α ,β are the roots of the... View Article

Sum Of N Terms Of The Series 1 By 2 Plus 3 By 4 Plus 7 By 8 Plus 15 By 16 Plus Is

(1) 2-n (2) 2-n(n - 1) (3) 2n (n - 1) + 1 (4) 2-n + n - 1 Solution: S = 1/2 + 3/4 + 7/8 + 15/16 + …..n terms = (2-1)/2 + (4-1)/4... View Article

29 Dec 2020: UPSC Exam Comprehensive News Analysis

CNA 29 Dec 2020:- Download PDF Here TABLE OF CONTENTS A. GS 1 Related B. GS 2 Related INTERNATIONAL RELATIONS 1. U.K. warns of ‘bumpy’... View Article

28 Dec 2020: PIB Summary & Analysis

December 28th, 2020, PIB:- Download PDF Here TABLE OF CONTENTS 1. National Medicinal Plants Board 2. Blue Flag 3. Country’s First Pneumococcal... View Article

Gist of Kurukshetra October 2020 Issue: Water and Sanitation

Kurukshetra Magazine is a vital source of study material for the UPSC IAS exam. It is a monthly magazine that gives information about important... View Article

Define Monsoon

A monsoon (from the Arabic mausim, which means 'season') arises due to a difference in temperatures between a landmass and the adjacent ocean.... View Article

Define Weedicides

The undesirable plants that grow along with the crops are called weeds. These weeds, feed on the nutrients provided to the crops and thus reduce... View Article

Define Presbyopia

For most people, the near point gradually recedes and the far point comes closer. This defect is called presbyopia. As we get older the power of... View Article

What Is Watan Jagir

Watan Jagirs were the persons who collected taxes from each village and gave them to mansabdars and mansabdars gave the taxes to the authority.... View Article

Evaluate Kx X 2 6 0

Given equation is: kx (x−2) + 6 = 0 kx2 − 2kx + 6 = 0-----(i) For a quadratic equation to have equal roots b2 – 4ac = 0 On comparing the... View Article

What is fallow land?

Fallow is the term referring to a land which has been ploughed and tilled but left unseeded during growing season. Fallow is a system of... View Article

Define Ereservation

E - reservation also known as electronic reservation refers to making the appointments online, by using the internet. A person can only check the... View Article

Define Direct Demand

For final consumption there are some demands of good, that is called direct demand. This is also known as autonomous demand. It shows the... View Article

Solve 5x 7 2 3 2x 14

Answer: In arithmetic, LCM (a,b) is the least common multiple of two numbers, a and b. And the LCM is the smallest or least positive integer... View Article

What Is White Petrol

Petroleum oils are characterized as either black or white (clean). Black oils include crude oil , furnace oil, fuel oil, tar and asphalt. White... View Article

What Is Cell Address

A cell reference, or cell address, is an alphanumeric value used to identify a specific cell in a spreadsheet. Each cell address contains 'one or... View Article

Define A Unit Charge

A unit charge refers to a charge of one coulomb which is the standard unit of charge. One Coulomb of charge is equal to electrons or protons. One... View Article