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

What does the term ”impressment” mean? A) forcing American sailors to serve on British ships B) a special press for ship making C) imprisioning traders

If someone called you and asked to participate in a survey, then they say ''Donald Trump hates Mexicans and women. Now that you know how likely are you to vote

What is the product of (9)(-9)(-1)?

Which is evidence that Sparta had elements of democracy? A.the king had absolute power B.the oligarchs had absolute power C.some leaders were tyrannical D.eph

in the poem 'october's party' what is the metaphor, simile, and alliteration?

Using the chart below, write a ratio comparing COST to WEIGHT.

What rebellion helped lead to the constitutional convention

You are playing a game. You start at 0 then you score -8 points on each 4 turns what is your score after those 4 turns

Does the function have a constant rate of change? If so,what is it?

Select the correct answer from each drop-down menu. The _____ gets rid of cell waste by breaking down larg