Happy Learning's video: Exercise 8 4 Part 7 Introduction To Trigonometry Class 10 NCERT MATHS HAPPY LEARNING

In this video, We'll be Solving problem 5 part 7 and 8 from Exercise 8.4 Chapter 8 'Introduction to Trigonometry' Class 10th NCERT maths book. Problem Statements are - 5. Prove the following identities, where the angles involved are acute angles for which the expressions are defined. (vii) (sin θ - 2 sin^3 θ) / (2cos^3 θ - cos θ) = tan θ (viii) (sin A + cosec A)^2 + (cos A + sec A)^2 = 7 + tan^2 A + cot^2 A Feel free to Share and Subscribe the channel for more videos. .4 School Level Mathematics: https://www.youtube.com/playlist?list=PL3mUbADy3AL6UkJ_bOZwG-v2mFlxDIPQK Operation Research by Happy Learning: https://www.youtube.com/playlist?list=PL3mUbADy3AL5_IuMi7pGs5XSQs1QZGkxG Best Playlist for Operations Research: https://www.youtube.com/playlist?list=PL3mUbADy3AL5hCjyurJV5K3I14x3b1Ymu Linear Programming Problem | Operations Research: https://www.youtube.com/playlist?list=PL3mUbADy3AL6uvIfxH-gVbSYzKnZdNgSm Traveling salesman problem | Operations Research: https://www.youtube.com/playlist?list=PL3mUbADy3AL5CKgrZvsLyNtp-3EYEzPoY Assignment Problem | Operations Research: https://www.youtube.com/playlist?list=PL3mUbADy3AL7RMCyeWavzMPDQHwzA6DXq Transportation problem | Operations Research: https://www.youtube.com/playlist?list=PL3mUbADy3AL7Y97bRBo1b2Fsg0pLDFR5X Percentage And Its Applications: https://www.youtube.com/playlist?list=PL3mUbADy3AL5wI24fiEAjNj-_yrB7OXln General Knowledge: https://www.youtube.com/playlist?list=PL3mUbADy3AL6Z5bwcguopT5gItolOqXUa Surface Area and Volumes Class 9: https://www.youtube.com/playlist?list=PL3mUbADy3AL5P2ABGoHQvy3_ZeUXPVO12 Youtube - 'How To Videos': https://www.youtube.com/playlist?list=PL3mUbADy3AL5z7zFLhg7zHuqwShhxWR8z Formulate Linear Programming Problem: https://www.youtube.com/playlist?list=PL3mUbADy3AL7HR1SqALIzYV2KT1Fm77Vj Investment Analysis: https://www.youtube.com/playlist?list=PL3mUbADy3AL6_OkyMtAYOSPtZDtSkrL_C