CBSE Class 11-science Answered
integration
Asked by Kirandoon | 07 Jan, 2009, 02:06: PM
Expert Answer
cosx - cos2x = 2cos(3x/2)cos(x/2) and 1 - cosx = 2cos2(x/2) putting in above integration we get cos (3x/2) / cos(x/2)
we know that cos 3x = 4cos3x - 3cosx so cos (3x/2) = 4cos3 (x/2) - 3cos(x/2) so final integration is 4cos2(x/2) - 3 ===> 2(1 + cosx) - 3 ===>2cosx - 1 which is 2sin x - x
Answered by | 11 Jan, 2009, 07:32: PM
Application Videos
-
Relation between roots and coefficient of a Quadratic E ...
Video contains the question based on quadratic equation where the relation ... -
Sum of infinite terms of an Arithmetic-Geometric Progre ...
Video contains the question based on how to find the sum of infinite terms ... -
Introduction to Locus of a point and its equation ...
Video contains the question based on finding equation of locus of a point -
Problems based on Equation of Locus of a Point ...
Video contains the question based on finding equation of locus of a poin...
-
Introduction to Translation of Axes and Problems based ...
Video contains the question based on translation of axes
Concept Videos
-
Trigonometric identities and problems
Fundamental trigonometric identities and problems based on them. Sign Conve... -
Degree measure and Radian measure ...
This video explains the concept of negative & positive angles, conversion o... -
Types of sets and its representation
Types of sets and describe two forms of set representation. -
Subsets and Supersets
This video covers the definition of subsets and supersets of a set and also... -
Representing the union and intersection of sets
Venn diagrams. Represent the union and intersection of sets with the help o...
CBSE 11-science - Maths
Asked by sampabarman328 | 18 Apr, 2024, 01:20: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by tahikpreet0001 | 17 Apr, 2024, 06:41: AM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by nitinkrjsr07082008 | 15 Apr, 2024, 11:32: PM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by kanhaparashar17 | 04 Apr, 2024, 12:55: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by dseno1741 | 29 Mar, 2024, 08:47: PM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by parvanipatil09 | 29 Mar, 2024, 10:12: AM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by rishithatelaprolu84 | 29 Mar, 2024, 08:32: AM
ANSWERED BY EXPERTCBSE 11-science - Maths
Asked by Manjeet | 23 Mar, 2024, 09:41: PM
ANSWERED BY EXPERT
