WBCHSE Board Class 11 Mathematics Book Solution in Bengali - Misc. Q - 293

Home»Book Solutions»Class 11»Miscellaneous»Trigonometric Functions of Compound Angles»Class 11 Book Solution from Miscellaneous in Trigonometric Functions of Compound Angles Question No: 293

Class 11 Book Solution from Miscellaneous in Trigonometric Functions of Compound Angles Question No: 293

একটি কোণ \(\theta \) কে 2টি অংশ \(\alpha\) ও \(\beta\) তে এমনভাবে ভাগ করা হয় যে \(tan\alpha : tan\beta = x : y\), প্রমাণ করো \(sin(\alpha - \beta) = \frac{x-y}{x+y} sin \theta\)