## SN Dey Class 11 Compound Angles Long Answer Type Questions Solutions

SN Dey class 11 solutions | Trigonometric ratios of compound angles long answer type questions SN Dey class 11 solutions | Compound angles SN Dey Solution | Compound angles long answer type questions solutions | S N Dey Class 11 Compound Angles Solutions | WB math class 11 solution Ex 1: Prove that $\tan(A+B)-\tan(A-B)=\frac{\sin 2B}{\cos^2B-\sin^2A}$ … Read more