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

Can someone help me

3. Who is the speaker in this poem The Unknown Citizen? a. A representative of a school district b. A representative of the government c. A representative of a

Abraham is installing carpet in his bedroom. On the blueprints, Abraham's bedroom is 6 inches wide and 10 inches long. If the scale is 1 in : 2 ft, what is t

The Civil War begin when confederate forces attacked fort Sumter in South Carolina true or false

The sacrifice of Jesus on the cross made the Old Testament sacrifices _______ . better unnecessary understandable more important

Amy picked 8 bushels of peaches. A bushel of peaches weighs 35 pounds. How many ounces of peaches did she pick in each bushel? How many ounces did she pick in a

What is the measure of angle X.A. 42 degressB. 48 degressC. 66 degressD. 72 degressplzz help me!

Solve this2^x=3^(x+1) what are the exact and approximate solutions

For $300,000, Willis agrees to build a new home for Robert, who is very picky. Willis builds the home to Robert's specifications with one exception. The faucets

How do organ systems interact