Report copyright - Unfiled Notes Page 1 cosA cosB cosC Example 12. In any AABC, prove that cosA cosB cosC a 2 +c2 -b 2abc Solution : LHS — 2abc 2abc = RHS 4+3 COSB 2abc 2abc EXERCISE 2 In a AABC ,
Please pass captcha verification before submit form
Please pass captcha verification before submit form