Show that the triangle is a right triangle

  • Thread starter bbanbury
  • Start date
  • #1
1
0
If angles A, B, and C are the angles of a triangle such that sin(A+B)=1/sin(C) and cos(A+B)=cos(C), then show that the triangle is a right triangle.
 

Answers and Replies

  • #2
238
0
You need to show your work. But for starters, one way that you can approach this problem is to solve for "A+B" in both equations in terms of "C". Then you can solve for "C" using these two equations. Last, solve for A and B.
 
  • #3
370
0
Yeah, compound angle formulae a-gogo!
 

Related Threads on Show that the triangle is a right triangle

Replies
8
Views
8K
  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
7
Views
2K
  • Last Post
Replies
7
Views
2K
Replies
20
Views
2K
  • Last Post
Replies
7
Views
5K
  • Last Post
Replies
5
Views
7K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
5
Views
5K
Top