godsrockstar godsrockstar

02-11-2017
Mathematics

contestada

Which expression is equivalent to sin^2 x-sin x - 2/sin x -2
A. sin x + 1

B. sin x − 1

C. sin2x

D. -sin2x

Respuesta :

DrPepper21 DrPepper21

02-11-2017

Set sin x to a variable, i.e. u

u^2-u-2/u-2.

Factor:

(u-2)(u+1)/(u-2)

Simplify by canceling the u-2s...

leaving u+1. Since we substituted u for sin x...
the answer is A. sin x + 1

Answer Link

Otras preguntas

16 rights of medications

Yo __________ la computadora para las actividades en la clase de español. (usar) Mi abuela __________ inglés y español. (hablar) Los estudiantes __________ buen

1. Find the variable. 9.2x - 11.25x = 14.35

Jon scored 13 points during the first have of the game. What was his points per game?

Help please?:) introduction to accounting related

Find the distance between the points (-16, -16) and (8, -16).

Each of the women is a successful lawyer, but__ had never met before today.

Child development: Is it safe to do abdominal work during pregnancy

the coordinates of the vertices of a polygon are shown on the graph below what is the name of the polygon HELPPP ANSWER FAST

HELP ASAP 20 POINTS AAAA Please help. write a paragraph using eight (8) of these terms. observation hypothesis theory matter agent experimental group control gr