dr manohar re (डॉ मनोहर रे) class 10 math solution exercise 8 (D) Que 21to 25 NCERT I'm Shivanand Mishra . In this video we are going to teach you Class 10th math solution chapter 8.d (question - 21,22,23,24,25) ncert, त्रिकोणमिति का परिचय (introduction to trigonometry) Dr manohar re prakashan, up board, hindi medium, farmul of trigonometry. _________________________________________________*************************************************** Dosto ummid hai ki yah video apko pasand ayegi. Yadi aap class 8th, 9th & 10th ka free me pura course pana chahate hai to channel ko subscribe Karen. #class10thmathexercise8_d #ncert #introductiontotrigonometry #inhindi #drmanoharreprakashan #upboard #educationyourfuture