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Find the value of cos 2 73 o + cos 2 47 o +( cos73 o )( cos47 o )

 Find the value of cos273o+cos247o+(cos73o)(cos47o)

Grade:11

2 Answers

vishu
21 Points
5 years ago
(2cos(60)cos(13))square --cos120--cos26
simplfy with values this is the req ans
 
vishu
21 Points
5 years ago
 
(2cos(60)cos(13))2 --cos120--cos26
simplfy with values this is the req ans 
i meant this
 

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