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# CLASS_11_MATHS_SOLUTIONS_NCERT

## Class XI Chapter 3 –

Class XI Chapter 3 – Trigonometric Functions Maths ______________________________________________________________________________ Question 2: Find the values of other five trigonometric functions if Solution 2: 3 sin x 5 1 1 5 cosec x sin x 3 3 5 2 2 sin xcos x1 cos x1 sin 2 2 cos x 1 5 2 3 cos x 1 25 2 9 2 x 3 sin x , 5 x lies in second quadrant. 2 16 cos x 25 4 cos x 5 Since x lies in the 2 nd quadrant, the value of cos x 4 cos x 5 1 1 5 sec x cos x 4 4 5 3 sin x 5 3 tan x cos x 4 4 5 1 4 cot x tan x 3 . will be negative Printed from Vedantu.com. Register now to book a Free LIVE Online trial session with a Top tutor.

Class XI Chapter 3 – Trigonometric Functions Maths ______________________________________________________________________________ Question 3: Find the values of other five trigonometric functions if Solution 3: 3 cot x 4 1 1 4 tan x cot x 3 3 4 1tan xsec 2 2 2 x 4 1 sec 3 16 1 sec 9 25 sec 9 2 5 sec x 3 Since x 5 sec x 3 x 2 x 2 x lies in the 3 rd quadrant, the value of sec x 1 1 3 cos x sec x 5 5 3 sin x tan x cos x 4 sin x 3 3 5 4 3 4 sin x 3 5 5 1 5 cosec x sin x 4 3 cot x , x 4 will be negative. lies in third quadrant. Printed from Vedantu.com. Register now to book a Free LIVE Online trial session with a Top tutor.

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Class XI Chapter 6 - Linear Inequal

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Class XI Chapter 11 - Conic Section

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Class XI Chapter 12 - Introduction

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Class XI Chapter 13 - Limits and De

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Class XI Chapter 14 - Mathematical

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Class XI Chapter 15 - Statistics Ma

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