Ch 8 Introduction to Trigonometry | ncert solution | ex 8.1 | Class 10 | CBSE Maths | Introduction

Ch 8 | Introduction to Trigonometry | ncert solution | ex 8.1 | Class 10 | CBSE Maths | Explanation | Introduction | Basic Concepts | chapter 8 | Trigonometry | exercise 8.1 | Part 1 | Girish Sir | Math nerd | Year 2024 In this Part 1 We have discussed about Ch 8 Explanation, Basic Concepts, and also solution of exercise 8.1 📚 Welcome to our comprehensive guide on Class 10 CBSE Maths, Chapter 8: Introduction to Trigonometry! In this video, we'll delve deep into the explanation of basic concepts that form the foundation of trigonometry. Get ready to kickstart your journey with NCERT Solution Exercise 8.1, where we’ll walk you through each problem step-by-step, making it super easy for you to grasp the essentials. ✨ Whether you're prepping for exams or just need a refresher, our engaging content is designed to boost your understanding and confidence! Don’t forget to like, share, and subscribe for more educational videos! 🎓✨ #trigonometryclass10 #cbse #maths #ncert #trigonometry Class 10 maths Chapter 8 Introduction to trigonometry Class 10 maths Chapter 8 trigonometry Class 10 maths Ch 8 Introduction to trigonometry Class 10 maths Ch 8 trigonometry Class 10 maths Ch 8 Introduction to trigonometry concepts Class 10 maths Ch 8 Introduction to trigonometry explanation Ch 8 Introduction to trigonometry explanation Class 10 maths Ch 8 Introduction to trigonometry by Girish Sir ch 8 class 10 maths concepts Introduction to trigonometry ex 8.1 solution trigonometry ex 8.1 solution Introduction to trigonometry ex 8.1 solution trigonometry 8.1 solution Introduction to trigonometry exercise 8.1 solution trigonometry exercise 8.1 solution class 10 maths ch 8 ex 8.1 solution class 10 maths ch 8 exercise 8.1 solution class 10 math ncert solution ex 8.1 class 10 maths ncert solution ex 8.1 Q1) In ∆ ABC, right-angled at B, AB = 24 cm, BC = 7 cm. Determine :(i) sin A, cos A (ii) sin C, cos C Q2) In Fig. 8.13, find tan P – cot R. Q3) If sin A = 𝟑/𝟒 , calculate cos A and tan A. Q4) Given 15 cot A = 8, find sin A and sec A. Q5) Given sec 𝜽= 𝟏𝟑/𝟏𝟐 , calculate all other trigonometric ratios. Q6) If ∠ A and ∠ B are acute angles such that cos A = cos B, then show that ∠ A = ∠ B. Q7) If cot 𝜽 = 𝟕/𝟖 , evaluate : (i) (𝟏+𝐬𝐢𝐧⁡𝜽 )(𝟏−𝐬𝐢𝐧⁡𝜽 )/(𝟏+𝐜𝐨𝐬⁡𝜽 )(𝟏−𝐜𝐨𝐬⁡𝜽 ) (ii) cot^𝟐⁡𝜽 Q8) If 3 cot A = 4, check whether (𝟏−〖𝐭𝐚𝐧〗^𝟐⁡𝑨)/(𝟏+〖𝒕𝒂𝒏〗^𝟐⁡𝑨 )=〖𝐜𝐨𝐬〗^𝟐⁡𝑨−〖𝐬𝐢𝐧〗^𝟐⁡𝑨 or not ? Q9) In triangle ABC, right-angled at B, if tan A = 𝟏/√𝟑 , find the value of: (i) sin A cos C + cos A sin C (ii) cos A cos C – sin A sin C Q10) In ∆ PQR, right-angled at Q, PR + QR = 25 cm and PQ = 5 cm. Determine the values of sin P, cos P and tan P. Q11) State whether the following are true or false. Justify your answer. The value of tan A is always less than 1. sec A = 𝟏𝟐/𝟓 for some value of angle A. cos A is the abbreviation used for the cosecant of angle A. cot A is the product of cot and A. sin 𝜽 = 𝟒/𝟑 for some angle 𝜽. #cbseboard10 #cbseclass10mathematics #cbsemathssclass10 #mathnerd #girishsir #jaipur #maths #class10maths #class10th #class10chapter8 #trigonometryclass10 #trigonometry #introductiontotrigonometryclass10 #year2024 #session2024_25 #ncertsolution #ncertsolutions #ncertsolutionsforclass10maths