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 drama class at a middle school was preparing for their spring play in the school auditorium. One week before the performance, a parent complained to the sch

What is the relationship between \blueD{\angle a}∠astart color #11accd, angle, a, end color #11accd and \greenD{\angle b}∠bstart color #1fab54, angle, b, end co

The SAT is the most widely used test in the undergraduaté admissions process, Scores on the math portion of the SAT are believed to be normally distributed and

True or false the sentence who should we select as our temerory chairman? is grammatically correct

Recognizing rhetorical techniques in a speech quiz president lincolns 1865

The area of a rectangular carpet is 252 square feet. The length is nine feet more than the width. Find the length and the width of the carpet.

houses are twice as expensive _____ they were two years ago.

Solve the system of equations by graphing. y = x − 6 3x − 3y = 18

write equation of the log base of 3

20 PTS+BRAINLIEST 8th Grade Simple quadratic equation- answers for points will be reported :) equation: -7x+6= x squared-7x