Class 11 maths ncert solutions trigonometry. Chapter 3 Trigonometric Functions 2018-10-01

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NCERT Solutions for Class 11th Maths Chapter 3 Trigonometric Functions

class 11 maths ncert solutions trigonometry

Link Study Material are useful for the students mainly following Science Stream. In each chapter, we have divided it into two parts - Serial Order Wise and Concept Wise. Question 12: Find the values of other five trigonometric functions if , x lies in second quadrant. Hence, the given statement is false Page No 187: Answer: i Out of the given alternatives, only Hence, A is correct. It is recommended that keep on practicing the question in the given exercise to gain more confidence. The applicability to non-right-angle triangles exists, but, since any non-right-angle triangle on a flat plane can be bisected to create two right-angle triangles, most problems can be reduced to calculations on right-angle triangles. Q4 :Find the degree measure of the angle subtended at the centre of a circle of radius 100 cm by an arc of length 22 cm.

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NCERT Solutions for Class 11 Maths Chapter 3 Trigonometric Functions

class 11 maths ncert solutions trigonometry

From equation 1 , we obtain By using the converse of B. Figure showing measurements are considered as sides of right-angled triangle and results can be carried out with the help of identities related to sine, cosine, and tangent of a number. With the plenty of interesting things around, it is very hard for the students to focus on their studies. Therefore,, and are all positive. Question 5: In a circle of diameter 40 cm, the length of a chord is 20 cm.

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NCERT Solutions for Class 11 Maths Chapter 3 Trigonometric Functions

class 11 maths ncert solutions trigonometry

Question 9: Find the values of other five trigonometric functions if , x lies in second quadrant. Trigonometry is most simply associated with planar right-angle triangles each of which is a two-dimensional triangle with one angle equal to 90 degrees. Other than given exercises, you should also practice all the solved examples given in the book to clear your concepts on Trigonometric Functions. Answer : Since x lies in the 2nd quadrant, the value of sec x will be negative. These solutions for Introduction To Trigonometry are extremely popular among class 10 students for Math Introduction To Trigonometry Solutions come handy for quickly completing your homework and preparing for exams.


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NCERT Solutions for Class 11 Maths Chapter 3 Exercise 3.3 Trigonometry

class 11 maths ncert solutions trigonometry

And the most important part is we can download them in our computer for later use. Now, Thus, the respective values of are. ३ के हल तथा समाधान नीचे दिए गए हैं। सभी प्रश्न विस्तार से हल किए गए हैं और प्रत्येक का उपयुक्त कारण भी दिया गया है। Click here for or go to to see the solutions of other exercises. Thus the majority of applications relate to right-angle triangles. Also, the domain and range of the trigonometric functions are explained.

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NCERT Solutions for Class 11 Maths Chapter 3 Trigonometric Functions

class 11 maths ncert solutions trigonometry

Q10 :Find the value of the trigonometric function Answer : It is known that the values of cot x repeat after an interval of π or 180°. Therefore, and are negative, where as is positive. We suggest you do all the chapters from Concept Wise, so that your concepts are cleared. Sol: Here, y is in 2 nd quadrant. And cos A is the abbreviation used for cosine of angle A.

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NCERT Solutions for Class 11 Maths Trigonometry

class 11 maths ncert solutions trigonometry

Answer : Since x lies in the 4th quadrant, the value of sin x will be negative. We have invested our full dedicated efforts just to make them easier for you all. Q5 :Find the values of other five trigonometric functions if , x lies in second quadrant. These all are completely free and it will be always. Answer : Since x lies in the 3rd quadrant, the value of sin x will be negative.

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NCERT SOLUTIONS FOR CLASS 11 MATHS Download Pdf

class 11 maths ncert solutions trigonometry

Hence, in 6 complete revolutions, it will turn an angle of 6 × 2π radian, i. Thus, the length of the minor arc of the chord is. Hence, the given statement is false. Watch and understand the concepts of trigonometry with 2D videos, click for details. Answer : Let the radii of the two circles be and.

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Chapter 3 Trigonometric Functions

class 11 maths ncert solutions trigonometry

Thus, the ratio of the radii is 5:4. Clearly, such a triangle is possible and hence, such value of sec A is possible. Q9 :Find the value of the trigonometric function Answer : It is known that the values of sin x repeat after an interval of 2π or 360°. Let an arc of length l subtend an angle of 60° at the centre of the circle of radius r 1, while let an arc of length l subtend an angle of 75° at the centre of the circle of radius r 2. All Trigonometric Functions Exercise Questions with Solutions to help you to revise complete Syllabus and Score More marks. Currently, trigonometry is used in many areas such as the science of scismology, designing electric circuits, describing the state of an atom, predicting the heights of tides in the ocean, analysing a musical tone and in many other areas.

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