What are trigonometric functions Class 11?
The trigonometric functions are also called the angle functions, which relates the angles and the ratios of the sides of a right angle triangle. Considering the unit circle, the six important trigonometric functions are given as follows: If “n” is an integer, then. Sin x =0 ⇒ x =nπ Cos x = 0 ⇒ x= (2n+1)π/2.
How do you solve trigonometric functions in Class 11?
Basic Trigonometric Formulas for Class 11
- cos (A + B) = cos A cos B – sin A sin B.
- cos (A – B) = cos A cos B + sin A sin B.
- sin (A+B) = sin A cos B + cos A sin B.
- sin (A -B) = sin A cos B – cos A sin B.
- If sin 𝜃 = –4/5 and 𝜋 < 𝜃 < 3𝜋/2, find the value of all the other five trigonometric functions.
Is trigonometric functions Class 11 hard?
In Class 11 Trigonometric Functions is the easiest one among all other chapters. Though there are a number of formulas, students can easily score the marks for this chapter.
How many trigonometric formulas are there?
The six trigonometric functions are sine, cosine, secant, cosecant, tangent and cotangent.
What is an angle Class 11?
Types of Angles Acute Angle: It lies between 0° to 90. Obtuse Angle: It lies between 90° to 180° Right Angle: The angle which is exactly equal to 90° Straight Angle: The angle which is exactly equal to 180° Reflex Angle: The angle which is greater than 180 degrees and less than 360 degrees.
Which chapter is trigonometry in class 11?
11 Chapter 3
Trigonometric Functions – Class 11 Chapter 3 – NCERT Solutions, Notes.
What are the 9 trigonometric identities?
Similarly, when we can learn here the trigonometric identities for supplementary angles.
- sin (180°- θ) = sinθ
- cos (180°- θ) = -cos θ
- cosec (180°- θ) = cosec θ
- sec (180°- θ)= -sec θ
- tan (180°- θ) = -tan θ
- cot (180°- θ) = -cot θ
How many exercises are there in trigonometry class 11?
There are five exercises in chapter 3 of class 11th Maths, and the last exercise is the miscellaneous exercise of chapter 3 of grade 11th Maths.
What is the value of sin 90 Theta?
equal to 1
What is the exact value of sin 90 degrees? The exact value of sin 90 degrees is equal to 1.
What are the trigonometry formulas for Class 11?
Here is the list of formulas for Class 11 students as per the NCERT curriculum. All the formulas of trigonometry chapter are provided here for students to help them solve problems quickly. Trigonometry Formulas. sin (−θ) = −sin θ. cos (−θ) = cos θ.
What did we learn in class 10 about trigonometry?
We had learned Basics of Trigonometry in Class 10. In this chapter, we will learn Finding values of trigonometric functions when one value is given (Example: Finding value of sin, cot, cosec, tan, sec, when cos x = -3/5 is given)
What is Chapter 3 trigonometric functions of NCERT class 11 Maths?
Chapter 3 Trigonometric Functions of NCERT Class 11 Maths is an important chapter for students. Though the chapter has more mathematical terms and formulae, BYJU’S made NCERT Solutions for Class 11 Maths easy for the students to understand and remember them, using tricks. Trigonometry is developed to solve geometric problems involving triangles.
What are the key features of NCERT solutions for Class 11 Maths?
Key Features of NCERT Solutions for Class 11 Maths Chapter 3- Trigonometric Functions. Studying the Trigonometric Functions of Class 11 enables the students to understand the following: Introduction to Trigonometric Functions; Positive and negative angles; Measuring angles in radians and in degrees and conversion of one into other