Chapter 8 of CBSE NCERT Class 10 Math covers Trigonometry. Concepts covered in Chapter 8 include trigonometric ratios, trigonometric ratios of complementary angles, trigonometric identities. The extra questions given below include questions akin to HOTS (Higher Order Thinking Skills) questions and exemplar questions of NCERT. Show Here is a quick recap of the key concepts that are covered in this chapter in the CBSE NCERT Class 10 Math text book. What are trigonometric ratios?The trigonometric ratios of the angle A in right triangle ABC are defined as follows: The ratios of cosec A, sec A and cot A are the reciprocals of sin A, cos A and tan A respectively. Trigonometric ratios of specific anglesThe values of the trigonometric ratios of an angle do not vary with the lengths of the sides of the traiangle, if the angle remains the same.
∴ The value of sin A or cos A never exceeds 1, whereas the value of sec A or cosec A is always greater than or equal to 1 Trigonometric ratios of complementary angles:The two angles are said to be complementary if their sum equals 90°.
Trigonometric identitiesAn equation involving trigonometric ratios of an angle is said to be trigonometric idnetity, if it is true for all values of the angles involved.
What is trigonometry explain?trigonometry, the branch of mathematics concerned with specific functions of angles and their application to calculations. There are six functions of an angle commonly used in trigonometry. Their names and abbreviations are sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant (csc).
Does Grade 10 have trigonometry?Class 10 Maths Chapter 8 Introduction to Trigonometry Notes
The notes for trigonometry class 10 Maths is provided here. In Maths, trigonometry is one of the branches, where we learn the relationships between angles and sides of a triangle.
What are the 3 types of trigonometry?There are four types of trigonometry used today, which include core, plane, spherical and analytic. Core trigonometry deals with the ratio between the sides of a right triangle and its angles.
What are the 4 types of trigonometry?The six important trigonometric functions are sine, cos, tan, cosec, sec, and cot.
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