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

please i need help This figure consists of a rectangle and semicircle. What is the area of this figure? Use 3.14 for π. Enter your answer to the nearest hundre

Jade wants to buy a $200,000 term life insurance policy. she is 34 years old. using the premium table, what is her annual premium for a 10 year policy? a 5-colu

What brings the U.S out of the Great Depression? A. The government prints more money to replace what was lost during the stock market crash B. WWII and growth o

If a bag has 8 blue marbles, 2 red, 4 orange, and 5 green, what is the probability of pulling out an orange marble.

If a rock is thrown upward on the planet Mars with a velocity of 15 m/s, its height above the ground (in meters) after t seconds is given by H = 15t − 1.86t2. (

find the total area of cardboard used in making a matchbox, complete with the sliding portion, 4cm long, 2.5cm wide, and 1.2cm deep (ignore the thickness of the

What are the answers to these?

Simplify cos^4x+2cos^2xsin^2x+sin^4x

Q1. When behavior is driven by instinct, it often means that we do it without really realizing why. Many of those who exercise regularly will just feel better w

Which detail from the poem best supports the answer to part A I too