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12th Maths - 30 Days – Scoring Worksheet - Day 1

 


XII Mathematics

30 Days –Scoring Worksheet - Day 1

 

Part  I- 5 Marks                                                          

1.      Prove by vector method that the perpendiculars (attitudes) from the vertices to the opposite sides of a triangle are concurrent 

2.      Using vector method, prove that  cos(α  + β ) = cos α cos β - sin α sin β 

3.      Using vector method, prove that  cos(α  - β ) = cos α cos β + sin α sin β 

4.      Using vector method, prove that  Sin (α  - β ) = sin α cos β - cos α sin β 

5.      Using vector method, prove that  Sin (α  + β ) = sin α cos β + cos α sin β

 

 

 

S.Saravana Kumar Msc., B.Ed., PGDCA

Jazz Public Mat Hr Sec School, Melur , Madurai Dist

# 7092681321 # 9597410308





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