SN Dey Class 11 Solutions

SN Dey Class 11 Compound Angles Long Answer Type Questions Solutions

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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

SN Dey Class 11 Solutions Compound Angles Short Answer Type Questions

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SN Dey Class 11 Chapter  Solutions. Short answers on compound angles. Compound Angles SATQ. Solutions of Trigonometric Ratios of Compound Angles Short Answer Type Questions. Ex 1(i):  Prove that sin2α + sin2(120°-α) + sin2(120°+α) = $\frac{3}{2}$ Solution:   Ex 1(ii):  Prove that sin2($\frac{\pi}{8}+\frac{\theta}{2}$) – sin2($\frac{\pi}{8}-\frac{\theta}{2}$) = $\frac{1}{\sqrt{2}}$ sinθ Solution:   Ex 1(iii):  Prove that cos2A … Read more

SN Dey Class 11 Solutions Compound Angles Very Short Answer Type Questions

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SN Dey Class 11 Chapter  Solutions. Compound Angles VSATQ. Solutions of Trigonometric Ratios of Compound Angles Very Short Answer Type Questions Ex 1(i):  Find the Value of sin(-75°) Solution:   Ex 1(ii):  Find the Value of cos15° Solution:   Ex 1(iii):  Find the Value of tan(-105°) Solution:   Ex 1(iv):  Find the Value of sec(-75°) … Read more

SN Dey Class 11 Solutions Differentiation Short Answer Type Questions

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Click here to get SN Dey Class 11 All Chapters Solutions SN Dey Class 11 Differentiation Short Answer Type Questions Solutions SN Dey class 11 Differentiation short answer type questions Ex 1 solutions: Ex 1: Examine whether f(x)=|x+1| has a derivative at x=-1. Solution: As $Lf'(-1) \neq Rf'(-1)$, we conclude that f(x)=|x+1| has no derivative … Read more

SN Dey Class 11 Solutions Differentiation Very Short Answer Type Questions

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SN Dey Class 11 Differentiation Solutions | Solution of Class 11 Derivative | SN Dey Class 11 Solutions | SN Dey Class 11 Derivative Solutions Very Short Answer Type Questions | West Bengal Board Class 11 Derivative Solution | SN Dey Class 11 Math Chapter Derivative Solution | Differentiation Very Short Answer Type Questions Answers … Read more

SN Dey Class 11 Solutions Differentiation Multiple Choice Type Questions

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Class 11 Differentiation Solution | SN Dey Class 11 Solutions | SN Dey Class 11 Differentiation Solutions | Solution of SN Dey Class 11 Derivative Multiple Choice Type Questions | West Bengal Board Class 11 Derivative Solution | SN Dey Class 11 Math Chapter Derivative Solution | Differentiation Multiple Choice Type Questions Answers | sn … Read more