hii guys
Give me answer
Attachments:
Answers
Answered by
1
Answer:
following formula are be used
cos C + cos D = 2 cos (C+D) /2 cos (C-D) /2
cos C - cos D = 2 sin (C+D) /2 sin (D-C) /2
Answered by
2
Answer:
can we be friends dear unnie?
Step-by-step explanation:
plz
Similar questions