Class 10 Maths Chapter 8 | Introduction to trigonometry | Basic concept | Ex 8.1 Complete

Hello Student in this video we will start Class 10 maths Chapter 8 - Introduction to trigonometry. We will understand how trigonometry is related to sides of right angle triangle. I will explain all about six trigonometric ratio- SinA , CosA , TanA , CotA , SecA , CosecA. These trigonometric ratio are nothing but ratio of sides of right angle triangle. For example We have following trigonometric ratio SinA = perpendicular/ Hypotenuse CosA = Base / Hypotenuse TanA = perpendicular/ Base CosecA = Hypotenuse/ perpendicular SecA = Hypotenuse/ Base CotA = Base / perpendicular Also we will do class Ex 8.1 Complete in step by step. I will explain every question of Excercise 8.1 in step by step manner Timestamp: 00:00 – Introduction 00:58 Meaning of trigonometry 2:32 how to identify Base perpendicular and Hypotenuse in right angle triangle 10:10 what are trigonometric ratio 20:50 – Question 1: Find sin A, cos A, sin C and cos C 026:32 – Question 2: Find tan P − cot R 31:29 – Question 3: Given sin A = 3/4, find cos A and tan A 34:41 – Question 4: Given 15 cot A = 8, find sin A and sec A 38:23 – Question 5: Given sec θ = 13/12, find all other trigonometric ratios 41:46 – Question 6: Prove that cos A = cos B ⇒ ∠A = ∠B 47:00 – Question 7: Given cot θ = 7/8, evaluate the expressions 55:13 – Question 8: Verify the given trigonometric identity 60:41 – Question 9: Solve the trigonometric expressions in triangle ABC 66:56– Question 10: Find sin P, cos P and tan P 71:39 – Question 11: True or False – Trigonometric Statements