Understanding Trigonometry | Fundamental relations between the trigonometric ratios of an angle

http://www.learncbse.in/ncert-class-10-math-solutions/

http://www.learncbse.in/ncert-solutions-for-class-10-maths-chapter-8-introduction-to-trigonometry/

http://www.learncbse.in/rd-sharma-class-10-solutions-chapter-5-trigonometric-ratios/

00:02 CBSE solutions for class 10 maths Chapter 8 Trigonometry Exercise 8.1 q11. State whether the following are true or false. Justify your answer.

00:15 (i) The value of tan A is always less than 1.

00:35 False ,Explanation.

00:50 (ii) sec A = 12/5 for some value of angle A.

01:25 True

01:37 (iii) cos A is the abbreviation used for the cosecant of angle A.

01:45 False

01:55 cosine of angle is abbreviated as Cos A.

02:05 (iv) cot A is the product of cot and A.

02:15 cot A is cotangent of angle A

02:30 (v) sin theta = 4/3 for some angle theta

02:45 Important property of sine.

The word ‘trigonometry’ is derived from the Greek words ‘tri’ (meaning three), ‘gon’ (meaning sides) and ‘metron’ (meaning measure). In fact, trigonometry is the study of relationships between the sides and angles of a triangle.See our other videos in which

We will study some ratios of the sides of a right triangle with respect to its acute angles, called trigonometric ratios of the angle. Learn how to solve the problems based on the relation between the trigonometrical ratios.

In this tutorial we show you how to name the sides of a right-angled triangle in preparation for using trigonometry to find lengths and angles in right-angled triangles

maths-revision/core-maths/trigonometry/triangle/right-angle/tutorial

In this tutorial I show you how to find the length of a side by using trigonometry when the missing side is in the top of the trigonometry ratio fraction.

this is done if you are given the opposite angle and the two other sides.

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CBSE solutions for class 10 maths Chapter 8 Trigonometry Exercise 8.3

CBSE class 10 maths NCERT Solutions Chapter 8 Trigonometry Exercise 8.4 | Trigonometric Identities

Tagged under: ncert solutions,learncbse.,gyanpub,Understanding,Understanding Trigonometry,Fundamental relations,trigonometric ratios,trigonometric ratios angle,Trigonometry,CBSE solutions class 10 maths,CBSE class 10 maths NCERT Solutions

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