01-02-2017
Mathematics

contestada

How do I begin this equation

How do I begin this equation class=

Respuesta :

HomertheGenius HomertheGenius

07-02-2017

Trigonometry:
We know that csc x = 1 / sin x and π = 180°;
sin 5π/ 6 = sin 150° = 1/2
csc 2π / 3 = 1 / sin 120° = 1 / √3/2 = 2 / √3
Finally:
4 · 1/2 + 7 · ( 2 / √3 )² = 2 + 7 · 4/3 =
= 2 + 28/3 = 2 + 9 1/3 = 11 1/3

Answer Link

Otras preguntas

The distance on a map between a student's house and her job is 6 cm on the same map the distance between her house and her school is 8cm the actual distance fro

KELP ME PLEASE!WILL MARK BRAINLIEST, THANK, AND, RATE

define the variables, write a system if equations corresponding to the problem, and solve the problem. 2. A group of four golfers pays $150 to play a round of g

Please HELP!!! what must be present for active transport to occur?

Determine the capacitive reactance for a 20 uF capacitor that is across a 20 volt, 60 Hz source

Objects in free-fall ___. A:do not experience air resistance B: do not experience gravity C: are accelerating faster than 9.8 m/s/s D: are completely weightless

A car dealership has 6 red, 9 silver, and 3 black cars on the lot. Six cars are randomly chosen to be displayed in front of the dealership. Find the probability

How many centimeters are there in meter? b. 10 c. d 1000 e. 10000 100 2. A centimeter is equal to 1 inch b.½inch C 1/2.54 inch d. 2.54 inches e. 37.39 inches

perform the indicated operation 3/4 ÷ 1/3

10 points can someone help me please i mark you as brainlist if you answer the 4 questions