xca (6-C) _ (27)
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а a
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prove that
xca-c)
Answers
Answered by
7
Answer:
ABCb+c11=c+a12=a+b13 , then prove that: cosA7=cosB19=cosC25. check-circle
Answered by
1
Answer:
Kalsh ksm is dvbjdwhjoihfdrhjihfvhji9
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