debbieperez2002 debbieperez2002

24-05-2017
Mathematics

contestada

Simplify the expression.
((cscy+coty)(cscy-coty))/(cscy)

A. -sin(y)
B. cos(y)
C. sin(y)
D. csc(y)

50 points!!!

Respuesta :

Firefly720 Firefly720

24-05-2017

should be B. I would get someone to double check me though!

Answer Link

longwoodfade longwoodfade

03-01-2021

Answer:

sin y

Step-by-step explanation:

Start with the numerator

(csc y + cot y)(csc y - cot y)=csc²y - cot²y

cot²y = csc²y -1

replace cot²y with csc²y -1

csc²y - csc²y +1 =1

Then 1/csc y = sin y

Answer Link

Otras preguntas

Which of the following statements best describes 21st-century migration flows to the United States? a Large numbers of immigrants and migrant workers, includi

Given that g(x)=x^2, find each of the following. a) g (1) b) g (-2) c) g(-x) d) g (2y) e) g(2+h)

If person 12 married a colorblind man, what are the possible genotypes and phenotypes if they had a child? 30 points!

what made it difficult to ensure effective government and adequate military protection for the entire roman empire

When Martin Luther posted the 95 Theses in 1517, his PRIMARY goal was to

Please Help!!!!!!!!!what are the similarities and differences between these data sets in terms of their centers and their variability?Data Set A. 12,15,18,18,22

Which of the following might a political party do at the local, state, and national level? Select all that apply.

What is earth’s current axial tilt? -21.5 -22.0 -22.5 -23.5 -24.5

What specialized cells serve and protect the body from injuries and diseases?

What was the structure of the roman church prior to the fifth century?