besania
besania
12-06-2016
Mathematics
contestada
Find CosB, TanB, SinB.
Respuesta :
caylus
caylus
12-06-2016
Hello,
Theorem of Al'Kashi says:
12²=13²+5²-2*13*5*cos b
==>cos b=5/13
sin b= √(1-(5/13)²)=12/13
tan b=(12/13)/(5/13)=12/5
Answer Link
VER TODAS LAS RESPUESTAS ( 75+ )
Otras preguntas
An NFL kicker will get paid based on the average hang time of his kicks. His average hang time is modeled by the following question: h=-16t^2 +97.6t. How many s
Plz help with this question! What is 1/3 * 3/5 * 5/7 ... * 97/99
Assume that you are provided with the following materials: • Strips of metallic zinc, metallic copper, metallic iron • 1M aqueous solutions of ZnSO4, CuSO4, F
Gladiator USA, a tire manufacturer, guarantees its tires against defects for five years or 60,000 miles, whichever comes first. Suppose USA can expect warran
Choose the letter of the implied main idea of the passage below. A fundraiser comes to your door and asks for a five-hundred-dollar contribution. You laughingly
A TV set shoots out a beam of electrons. The beam current is 10A. How many electrons strike the TV screen in a minute.
Convert the following: 2 liters is equivalent to ounces (rounded to the nearest hundredth)
What is one goal of land use planning? A. Reducing urban populations B. Engaging the community C. Achieving sustainability D. Increasing urban sprawl
BangBang Percussion Company tried to implement a flextime system. However, after only a few months, they abandoned the new system. Which of the following is the
please help :) A fossil is a. an imprint in stone of something that once lived. b. an ancient way of writing, carved into stone or stamped into clay. c. somethi