March 4, 2024

List of Trigonometric Identities

Trigonometric identities  are formulas that involve Trigonometric functions. Trigonometry is a branch of  mathematics that deals with the study of relationships between lengths and angles of triangles.  The early applications of the trigonometric functions were to surveying, navigation, and engineering. These functions  also play an important role in the study …

How to find the range of asinx+bcosx+c

How to find the range of asinx+bcosx+c ? Since and is defined for all real values  of   , so the domain of the given  function is  the set of all real numbers. We have to find the range of  asinx+bcosx+c  . For the time being, assume that …

Sequences and Series Tricks : Arithmetic and Geometric Sequences

Sequences and Series Tricks : Arithmetic and Geometric Sequences Both arithmetic and geometric sequences  are  important concept of sequences and series . Questions from AP & GP are asked in various competitions including SSC and Railways.  Here, are some important formulas that you can use  to solve questions based on …

Definite integration involving modulus function

Definite  Integration Involving Modulus Function There is no anti-derivative for a modulus function; however we know it’s definition Thus we can split up our integral  in two parts. One  part must be completely negative and the another  must be completely positive. This strategy is known as splitting .  To split …

Most important algebra questions asked in SSC CGL

In this article , some  important algebra  questions asked in SSC CGL previous year papers  are  discussed with explanations. 1. If   then find (i) (ii) (iii) (iv) Sol.   Given   . Squaring both sides  we get,  . Hence (i)  Now = Putting     , we get =    =1 …

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