Subir Das New Book Chapter 42 | ত্রিকোণমিতিক অনুপাত | P-1| Trigonometry by CSN Study ❤

[@arindombhattacharjee1849]

Sir 14 r ta 4/2root 3 chilo 4 ta gelo kothay?

[@arindombhattacharjee1849]

Sir 4 er ta 1+ cot theta chilo 1+cot theta mane to Tan tahole amra tan keno nilam na?

[@csnstudy]

না 1+ cot theta মানে tan noy

[@arindombhattacharjee1849]

@csnstudy ok sir.

[@arindombhattacharjee1849]

Sir ato short e ai chapter korale mathay kichui dhukbe na. 16 er ta ki koralen kichui bujhlam na.

[@csnstudy]

Next class এ বলবে আরেকবার বুঝিয়ে দেব

[@arindombhattacharjee1849]

@csnstudy Ok sir. Asole live class korte pari na ofc thake pore record dekhi tai ar bola hoy na.