Download CBSE Class 12 Mathematics Application Of Integration Notes in PDF format. All Revision notes for Class 12 Mathematics have been designed as per the latest syllabus and updated chapters given in your textbook for Mathematics in Class 12. Our teachers have designed these concept notes for the benefit of Class 12 students. You should use these chapter wise notes for revision on daily basis. These study notes can also be used for learning each chapter and its important and difficult topics or revision just before your exams to help you get better scores in upcoming examinations, You can also use Printable notes for Class 12 Mathematics for faster revision of difficult topics and get higher rank. After reading these notes also refer to MCQ questions for Class 12 Mathematics given on studiestoday
Revision Notes for Class 12 Mathematics Chapter 8 Applications of Integrals
Class 12 Mathematics students should refer to the following concepts and notes for Chapter 8 Applications of Integrals in Class 12. These exam notes for Class 12 Mathematics will be very useful for upcoming class tests and examinations and help you to score good marks
Chapter 8 Applications of Integrals Notes Class 12 Mathematics
(A) KEY CONCEPTS
1. AREA LYING BELOW THE X-AXIS:
If f(x)≤0 for a≤x≤b,then the graph of y=f(x) lies below x-axis Therefore area bounded by the curve y=f(x),x-axis and the ordinates x=a and x=b is given by
2. AREA LYING ABOVE THE X-AXIS:
The area enclosed by the curve y= f(x), x-axis & between the ordinate at x=a & x=b is given
3. AREA LYING ON RIGHT OF Y-AXIS :
Area bounded by the curve x=f(y),y-axis and the abscissa y=c and y=d is given by
4. AREA LYING ON LEFT OF Y-AXIS:
The area enclosed by the curve x= f(y), y-axis & between the abscissa at y=c & y=d is given by :
5. AREA BOUNDED BY TWO CURVES
Area bounded by the two curves y = f(x) & y = g(x) where f1(x) f2(x) in a , b & between the ordinate x=a & x=b is given by
IMPORTANT FORMULAE TO USE :
Important Notes
1. If the equation of the curve contains only even powers of x, then the curve is symmetrical about y-axis
2. If the equation of the curve contains only even powers of y, then the curve is symmetrical about x-axis.
3. If the equation of the curve remains unchanged when x is replaced by –x and y by –y, then the curve is symmetrical in opposite quadrants.
4. If the equation of the curve remains unchanged when x and y are interchanged ,then the curve is symmetrical about the line y=x
1. Find the area of the region {(x,y):x2 ≤ y ≤ x }
Sol. The required area is bounded between two curves y =x2 and y= x . Both of these curves are symmetric about y-axis and shaded region in the fig. shows the region whose area is required.
Therefore, required area =2× area of region R1
Now to find point of intersection of curves y =x2 and y= x , we solve them simultaneously.
Clearly, region R1 is in first quadrant, where x>0
x =x => y =x…………….(i)
y =x2…………….(ii)
either x = 0 or x = 1
The limits are , when x=0, y=0 and when x=1, y=1
So points of intersection of the curve are o(0,0) and A(1,1)
Now, required area = 2× area of region R1
Please click the link below to download CBSE Class 12 Mathematics Application of Integration.
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CBSE Class 12 Mathematics Chapter 8 Applications of Integrals Notes
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Notes for Mathematics CBSE Class 12 Chapter 8 Applications of Integrals
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Chapter 8 Applications of Integrals Notes for Mathematics CBSE Class 12
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Chapter 8 Applications of Integrals CBSE Class 12 Mathematics Notes
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Notes for CBSE Mathematics Class 12 Chapter 8 Applications of Integrals
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