IF A+B+C=PI and sin A=(sin B+sin C)/2, prove the cot B/2 *cot C/2=3
S SKY KEUNG New member Joined Jul 5, 2017 Messages 7 Jul 5, 2017 #1 IF A+B+C=PI and sin A=(sin B+sin C)/2, prove the cot B/2 *cot C/2=3
D Deleted member 4993 Guest Jul 5, 2017 #2 SKY KEUNG said: IF A+B+C=PI and sin A=(sin B+sin C)/2, prove the cot B/2 *cot C/2=3 Click to expand... Hint: Reduce the expression to Sine and Cosine terms. What are your thoughts? Please share your work with us ...even if you know it is wrong. If you are stuck at the beginning tell us and we'll start with the definitions. You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL: http://www.freemathhelp.com/forum/announcement.php?f=33
SKY KEUNG said: IF A+B+C=PI and sin A=(sin B+sin C)/2, prove the cot B/2 *cot C/2=3 Click to expand... Hint: Reduce the expression to Sine and Cosine terms. What are your thoughts? Please share your work with us ...even if you know it is wrong. If you are stuck at the beginning tell us and we'll start with the definitions. You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL: http://www.freemathhelp.com/forum/announcement.php?f=33
S SKY KEUNG New member Joined Jul 5, 2017 Messages 7 Jul 5, 2017 #3 subhotosh khan said: hint: Reduce the expression to sine and cosine terms. what are your thoughts? please share your work with us ...even if you know it is wrong. if you are stuck at the beginning tell us and we'll start with the definitions. you need to read the rules of this forum. Please read the post titled "read before posting" at the following url: http://www.freemathhelp.com/forum/announcement.php?f=33 Click to expand... thx. I solved it by myself
subhotosh khan said: hint: Reduce the expression to sine and cosine terms. what are your thoughts? please share your work with us ...even if you know it is wrong. if you are stuck at the beginning tell us and we'll start with the definitions. you need to read the rules of this forum. Please read the post titled "read before posting" at the following url: http://www.freemathhelp.com/forum/announcement.php?f=33 Click to expand... thx. I solved it by myself
