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

Which percussion instruments are featured at the beginning of mambo? which are not?

The resistance of a 100-cm wire of cross sectional area 2 × 10-6 m2 is 400 ω. what is the resistivity of the material of this wire?

The mean if four numbers is 25 if three numbers are 36, 12 and 24 what is the fiurth number

________ describes someone whose mood or behavior is changeable and unpredictable, or someone who is clever, lively, and quick. with a ________ teacher, you nev

An appraiser's conduct on issues relative to the uspap (uniform standards of professional appraisal practice) involves?

What is the main reason for employing contractionary fiscal policy in a time of strong economic growth?

Family a’s income is more than twice that of family b, yet family b has more equity. how do you account for the difference?

, how does socialization and/or policies continue to maintain inequalities in the home and family?

One strategy for managers to increase capacity by creating flexibility involves the?

For humanistic psychologists, many of our behaviors and perceptions are ultimately shaped by whether our ________ is ________ or ________