CosA + cosB =2cos((A+B)/2) cos((A-B)/2).....Only work with the right side to verify
Answers
Answered by
1
i hope it will help u
Attachments:
Similar questions
Math,
5 months ago
English,
5 months ago
History,
10 months ago
Math,
10 months ago
Accountancy,
1 year ago