Q5. Taking θ= 30° verify that: cos3θ = 4cos³θ -3cosθ

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Q6. Taking A= 60° and B= 30° verify that : sin (A - B) = sin AcosB - cosAsinB 3:05

۵ years پیش3:05

3:05

This podcast is a part of a series for, CBSE Class 10 Maths. We recommend that you take a look at our YouTube channel, to enter this new world of virtual learning at its best. || Youtube: Shiksha Abhiyan || t.ly/dN9j8 ||

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Q5. Taking θ= 30° verify that: cos3θ = 4cos³θ -3cosθ 3:03

۵ years پیش3:03

3:03

This podcast is a part of a series for, CBSE Class 10 Maths. We recommend that you take a look at our YouTube channel, to enter this new world of virtual learning at its best. || Youtube: Shiksha Abhiyan || t.ly/dN9j8 ||

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Q4. Taking θ= 30° verify that: sin3θ = 3sinθ - 4sin³θ 3:00

۵ years پیش3:00

3:00

This podcast is a part of a series for, CBSE Class 10 Maths. We recommend that you take a look at our YouTube channel, to enter this new world of virtual learning at its best. || Youtube: Shiksha Abhiyan || t.ly/dN9j8 ||

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Q3. Taking θ = 30° verify each of the following : tan2θ = 2tanθ / 1- tan' θ 2:54

۵ years پیش2:54

2:54

This podcast is a part of a series for, CBSE Class 10 Maths. We recommend that you take a look at our YouTube channel, to enter this new world of virtual learning at its best. || Youtube: Shiksha Abhiyan || t.ly/dN9j8 ||

1
Q2. Taking θ = 30° verify each of the following : cos2θ = 2cos' θ - 1 = 1- 2sin'θ 3:07

۵ years پیش3:07

3:07

This podcast is a part of a series for, CBSE Class 10 Maths. We recommend that you take a look at our YouTube channel, to enter this new world of virtual learning at its best. || Youtube: Shiksha Abhiyan || t.ly/dN9j8 ||

1
Q1. Taking θ = 30° verify each of the following : sin 2θ = 2sinθcosθ 2:42

۵ years پیش2:42

2:42

This podcast is a part of a series for, CBSE Class 10 Maths. We recommend that you take a look at our YouTube channel, to enter this new world of virtual learning at its best. || Youtube: Shiksha Abhiyan || t.ly/dN9j8 ||

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Jerry Seinfeld:A Joke About The Phrase "It Is What It Is' 1:54

Trigonometric Identities ( Part 3) | Introduction to Trigonometry | CBSE | Class 10 | Math « »
Q5. Taking θ= 30° verify that: cos3θ = 4cos³θ -3cosθ