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A +B+c=2s then COS (S_A)+COS(S_B)+COS(S_C)+COS S= SOLVE

A +B+c=2s
then COS (S_A)+COS(S_B)+COS(S_C)+COS S= SOLVE
 

Grade:7

1 Answers

Vikas TU
14149 Points
4 years ago
Dear student 
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