beckoning
Jul 14, 2009, 09:19 PM
Here are some questions I am having problems with in my trig/precalc class.
1. Find the coordinates, to the nearest hundreth, of the vertices of triangle PQR with P(0,1), Q(0,-4), and R(2,5) after a 45° rotation about the origin.
2. Find the value if sin A=12/13 with 90° ≤ A ≤ 180° and if sin B = -7/25 with -90° ≤ B ≤ 0°.
cos(A-B)
3. Two pilots take off from the same airport. Mason heads due south. Nancy heads 23° west of south. After 400 land miles, how far is Nancy from Mason's route?
4. Find the value if sin A=12/13 with 90° ≤ A ≤ 180° and if sin B = -7/25 with -90° ≤ B ≤ 0°.
sin(A+B)
5. Find the value if sin A=12/13 with 90° ≤ A ≤ 180° and if sin B = -7/25 with -90° ≤ B ≤ 0°.
tan(A+B)
6. Find the coordinates, to the nearest hundreth, of the vertices of triangle FGH with F(0,10) G(10,0) and H(1, -1) after a 75° rotation about the origin.
These are just a few questions, I have hundreds more that I am doing and having trouble with so if you're interested I can send you more.
1. Find the coordinates, to the nearest hundreth, of the vertices of triangle PQR with P(0,1), Q(0,-4), and R(2,5) after a 45° rotation about the origin.
2. Find the value if sin A=12/13 with 90° ≤ A ≤ 180° and if sin B = -7/25 with -90° ≤ B ≤ 0°.
cos(A-B)
3. Two pilots take off from the same airport. Mason heads due south. Nancy heads 23° west of south. After 400 land miles, how far is Nancy from Mason's route?
4. Find the value if sin A=12/13 with 90° ≤ A ≤ 180° and if sin B = -7/25 with -90° ≤ B ≤ 0°.
sin(A+B)
5. Find the value if sin A=12/13 with 90° ≤ A ≤ 180° and if sin B = -7/25 with -90° ≤ B ≤ 0°.
tan(A+B)
6. Find the coordinates, to the nearest hundreth, of the vertices of triangle FGH with F(0,10) G(10,0) and H(1, -1) after a 75° rotation about the origin.
These are just a few questions, I have hundreds more that I am doing and having trouble with so if you're interested I can send you more.