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The frequently asked topics of Chapter 8 of NCERT Solutions in the CBSE exam of Class 10 Maths are introduction to trigonometry, trigonometric identities, trigonometric ratios of some specific angles, trigonometric ratios of complementary angles and trigonometric identities.
- Trigonometry For Class 10
In this chapter, we will learn the basics of trigonometry....
- Trigonometry For Class 10
- Trigonometric Ratios
- Trigonometric Ratios For Complementary Angles
- Trigonometric Identities
Trigonometric ratios of an acute angle in a right triangle express the relationship between the angle and the length of its sides. Let ∆ABC be a triangle right angled at B. Then the trigonometric ratios of the angle A in right ∆ABC are defined as follows: Note: The values of the trigonometric ratios of an angle do not vary with the lengths of the s...
sin (90° – A) = cos A cos (90° – A) = sin A tan (90° – A) = cot A cot (90° – A) = tan A sec (90° – A) = cosec A cosec (90° – A) = sec A Note: Here (90° – A) is the complementary angle of A.
An equation involving trigonometric ratios of an angle is called a trigonometric identity, if it is true for all values of the angle(s) involved. (i) sin2θ + cos2θ = 1 [for 0° ≤ θ ≤ 90°] (ii) sec2θ – tan2θ = 1 [for 0° ≤ θ ≤ 90°] (iii) cosec2θ – cot2θ = 1 [for 0° < θ ≤ 90°]
Learn trigonometry basics, formulas, identities and examples from NCERT solutions with videos. Find out how to calculate trigonometric ratios of angles and use them in problems.
8.1 Introduction. You have already studied about triangles, and in particular, right triangles, in your earlier classes. Let us take some examples from our surroundings where right triangles can be imagined to be formed. For instance : Suppose the students of a school are visiting Qutub Minar.
In this chapter, we will learn the basics of trigonometry. Get the complete concept of trigonometry which is covered in Class 10 Maths. Also, get the various trigonometric ratios for specific angles, the relationship between trigonometric functions, trigonometry tables, and various identities given here. 21,364.
2 days ago · Chapter 8 of Class 10 Maths is basically about trigonometry which is a very important topic for Class 10. It covers the introduction to the ratios and identities, trigonometric ratios of some specific angles, ratios of some complementary angles, and trigonometric identities to solve equations.
Trigonometry can be defined as the study of relationships between the sides and angles of a triangle. There are two main concepts that students will learn in this chapter, which are, trigonometric ratios and trigonometric identities.
