![\text{Factor:}\qquad \qquad 1+2\sin \bigg(\dfrac{A+B}{4}\bigg)\bigg[\cos \bigg(\dfrac{A-B}{4}\bigg)-\sin \bigg(\dfrac{A+B}{4}\bigg)\bigg]](/tpl/images/0774/0532/f28be.png)
![\text{Cofunction:}\qquad 1+2\sin \bigg(\dfrac{A+B}{4}\bigg)\bigg[\cos \bigg(\dfrac{A-B}{4}\bigg)-\cos \bigg(\dfrac{\pi}{2}-\dfrac{A+B}{4}\bigg)\bigg]\\\\\\.\qquad \qquad \qquad =1+2\sin \bigg(\dfrac{A+B}{4}\bigg)\bigg[\cos \bigg(\dfrac{A-B}{4}\bigg)-\sin \bigg(\dfrac{2\pi -(A+B)}{4}\bigg)\bigg]](/tpl/images/0774/0532/4dc0b.png)
![\text{Sum to Product:}\quad 1+2\sin \bigg(\dfrac{A+B}{4}\bigg)\bigg[2 \sin \bigg(\dfrac{2\pi-2B}{2\cdot 4}\bigg)\cdot \sin \bigg(\dfrac{2A-2\pi}{2\cdot 4}\bigg)\bigg]\\\\\\.\qquad \qquad \qquad =1+4\sin \bigg(\dfrac{A+B}{4}\bigg)\cdot \sin \bigg(\dfrac{\pi-B}{4}\bigg)\cdot \sin \bigg(\dfrac{\pi -A}{4}\bigg)](/tpl/images/0774/0532/998c2.png)
If A, B ,C are the angles of a triangle then,
Please help me to prove this!
...
Mathematics, 21.09.2020 01:01 dulaneystrode
If A, B ,C are the angles of a triangle then,
Please help me to prove this!
Answers: 2
Another question on Mathematics
Mathematics, 21.06.2019 14:00
What is the slope of a line that is perpendicular to y = 3x + 1
Answers: 1
Mathematics, 21.06.2019 22:30
Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red
Answers: 1
Mathematics, 22.06.2019 02:30
Build is 120 wide 20 feet high 48 feet long how many cubic feet and the volume
Answers: 1
You know the right answer?
Questions
History, 21.02.2020 03:29
Social Studies, 21.02.2020 03:30
English, 21.02.2020 03:30
Mathematics, 21.02.2020 03:30
Mathematics, 21.02.2020 03:30
