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In this video series you get: Solution for Class 10th Maths Chapter 8- Introduction to Trigonometry Solved by Expert Teachers as per NCERT (CBSE) Book guidelines. To build your concept and get expert in 10th Class Mathematics, The topic and sub-topic in Chapter 8 Introduction to Trigo.
8.1 Introduction,
8.2 Trigonometric Ratios,
8.3 Trigonometric Ratios of Some Specific Angles,
8.4 Trigonometric Ratios of Complementary Angles,
8.5 Trigonometric Identities and
More: Power Capsule on 10th class very important questions, 10th previous year questions, and 10th class last 10 year questions, to become expert in 10th Class
Chapter 8
We coverall exercises in the chapter given below:-
EXERCISE 8.1 - Questions with Solutions,
EXERCISE 8.2 - Questions with Solutions,
EXERCISE 8.3 - Questions with Solutions, and
EXERCISE 8.4 - Questions with Solutions
Suggestions:
Other than given exercises, you should also practice all the solved examples given in the book to clear your concepts on Introduction to Trigonometry
Trigonometry is not only extremely important for class 10 examinations, but also forms the foundation for higher mathematics. Thus, there are some basic trigonometry formulas for class 10 that are used to derive more complex concepts.
Trigonometry is used to analyze the relationship between angles heights and lengths of triangles. The fundamentals of trigonometry are introduced in class 10 and have been summarized below.
In a right-angled triangle, the Pythagoras theorem states
H^2=P^2+B^2
There are some properties pertaining to the right-angled triangle. It is to be noted that in the following formulas, P stands for perpendicular, B stands for base and H stands for the hypotenuse.
Sin(A) = P / H
Cos(A) = B / H
Tan(A) = P / B
Cot (A) = B / P
Cosec (A) = H / P
Sec (A) = H/B
Sin2A + Cos2A = 1
Tan2A + 1 = Sec2A
Cot2A + 1 = Cosec2A
In order to find a relationship between various trigonometric identities, there are some important formulas:
1. TanA = SinA / CosA
2. CotA = CosA / SinA
3. CosecA = 1 / SinA
4. SecA = 1 / CosA
Don’t Miss to watch videos of the series to build your concept in 10th Class Chapter8:
Basic Concept and Exercise 8.1 Part 1
Basic Concept and Exercise 8.1 Part 2
Basic Concept and Exercise 8.1 Part 3
Exercise 8.2 Part 4
Exercise 8.2 Part 4 Continued
Exercise 8.3 Part 5
Exercise 8.4 Part6
Power Capsule P1
Power Capsule P2
Power Capsule P2c.
Trigonometry Class 10th Very Imp Question
Trigonometry Class 10th Power Capsule P3
History and uses of Trigonometry
Trigonometry word derive form two words trigonon, means “triangle” and metron means “measure” is a mathematics branch that studies relationships involving lengths and angles of triangle. This emerged in the Hellenistic world during the 3rd century BC from applications of geometry to astronomical studies.
The 3rd century astronomers first noted that the lengths of the sides of right angle triangle and the angle between those sides have a fixed relationships, and further these calculation defined as the trigonometric functions which we study today in pure and applied mathematics: such as Fourier transform, e.g. or the wave equation, use trigonometric functions to understand cyclical phenomena across many application in fields as Physics, Mechanical and Electrical Engineering, Music and Acoustics, Astronomy, Ecology and Biology it is also the foundation of Surveying.
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