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# RD SHARMA Solutions for Class 10 Mathematics Chapter 6: Trigonometric Identities

This chapter deals with the various trigonometric identities and their applications. In this chapter, complementary angles are used on other identities, which are then applied to trigonometric identities. It also deals with the basic identities and their proof. A trigonometric identity can be defined as an equation involving trigonometric ratios related to a specific angle. The following ratios are used to formulate trigonometric identities:

• cosecA=1/sinA
• secA=1/cosA
• cotA=1/tanA      Here, A is the specified angle in a right-angled triangle.

These ratios help in the derivation of trigonometric identities by virtue of the various mathematical operators. These trigonometric identities are further used to derive separate identities, which have been discussed extensively using numerical. Parent trigonometric identities are used to derive the remaining identities. Some of these parent identities are as follows:

• cos²A+sin²A=1
• 1+tan²A=sec²A
• cot²A+1=cosec²A

Chapter 6: Trigonometric Identities, a detailed application of all the parent identities to derive other identities, has been provided. These derivations are essential for students because they play a vital role in understanding the chapters that follow. Besides that, trigonometry helps students practice complex questions and figure out simple routes towards the solution, which drastically enhances their problem-solving abilities. This chapter provides the students with practice questions that involve using parent identities to solve equations and derive other identities. It also involves representing particular trigonometric ratios related to other ratios, such as tanA, cosA and secA in terms of sinA.

## Key features of Aakash Institute’s R.D. Sharma solutions for class 10 Maths, Chapter 6-Trigonometric Identities:

• The solutions provided by the Aakash institute are formulated after thorough brainstorming by highly qualified professionals.
• The answers provided by the Aakash institute are based on the norms provided by the CBSE.
• The solutions have been prepared after thorough research of the previous exam patterns and marks weightage.
• The solutions provided by Aakash institute are such that the students can complete the syllabus efficiently and in less time.
 Also See NCERT Solutions For Class 10 Maths Chapter 1 Real Numbers NCERT Solutions For Class 10 Maths Chapter 2 Polynomials NCERT Solutions For Class 10 Maths Chapter 3 Pair of Linear Equations in one Variable NCERT Solutions For Class 10 Maths Chapter 4 Quadratic Equations NCERT Solutions For Class 10 Maths Chapter 5 Arithmetic Progressions NCERT Solutions For Class 10 Maths Chapter 6 Triangles Geometry NCERT Solutions For Class 10 Maths Chapter 7 Coordinate Geometry NCERT Solutions For Class 10 Maths Chapter 8 Introduction to Trigonometry NCERT Solutions For Class 10 Maths Chapter 9 Some Applications of Trigonometry NCERT Solutions For Class 10 Maths Chapter 10 Circles NCERT Solutions For Class 10 Maths Chapter 11 Constructions NCERT Solutions For Class 10 Maths Chapter 12 Areas Related to Circles NCERT Solutions For Class 10 Maths Chapter 13 Surface Areas and Volume NCERT Solutions For Class 10 Maths Chapter 14 Statistics NCERT Solutions For Class 10 Maths Chapter 15 Probability

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