Q6. If A,B,C are angles of a ∆ABC, show that sin (B + C ) / (2) = cos A / 2 .

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Trigonometric Ratios of Some Specific Angles (Part 1) | Introduction to Trigonometry | CBSE | Class 10 | Math

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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 ||