Question

TRIGONOMETRIC FUNCTIONS!!
If you scroll down a bit after you click this link, you will find "5.2 exercises". We just went over some quick concepts of this chapter, but I would like to get ahead this spring break. How would I go about answering question 1? Can you give an example of how to answer one of the questions from 3-10?
http://books.google.com/books?id=8GB2Udf8wnoC&pg=PA345&dq=use+common+sense+to+match+the+variables+and+the+values.&hl=en&sa=X&ei=W089UeTrMrDo2gWChYDgDw&ved=0CD4Q6AEwAg#v=onepage&q=use%20common%20sense%20to%20match%20the%20variables%20and%20the%20values.&f=false

Answer 1

the answer of 1) is: (a)B, (b)D, (c)A, (d)C, (e)E

Answer 2

@Kilochan , still need help ?

Answer 3

Yea :/ I'm really trying to figure this out, and Im pretty close but still not precisely right. I understand number 3 but number 5 is a bit more confusing and I am still unsure of numbers 1 and 2

Answer 4

for 1) Use common sense :
means , the hypotenuse is longest side, the options for side are 7,24,25
so, using common sense, hypotenuse =... ?

Answer 5

hypotenuse is 25?? represented by letter z

Answer 6

correct :)
now 'x' is greater or y is greater ?
so, which one will be 24 and which is 7 ?

Answer 7

y=24? and x=7?

Answer 8

correct :)
now any idea about angles ?

Answer 9

is alpha...45 degrees? I'm not really sure

Answer 10

45 is not even an option
ANGLE OPPOSITE TO LARGER SIDE IS LARGER.
so, angle alpha is larger or smaller ?
choose from 0.28 and 1.29

Answer 11

oh, wow! I cannot believe I said that D: o.O I must be dead from today lol Forgive me....um, alpha is obviously .28 and beta is 1.29. This time I am telling and not asking lol

Answer 12

yes, those are correct :)
you do the rest part of 1) the same way.

Answer 13

ok! I see now! Thanks! And as for problems 3-10. I understand number 3 and I got this answer: (4/5). (3/5), (4/3). (3/4), (5/3), (3/4)
But i am assuming the process in answering these questions would vary with the different triangles. How would I do number 5 for instance?

Answer 14

the method is exactly the same as you did for 3)

Answer 15

I made a mistake! the last answer for number 3 should be (5/4)

Answer 16

yes, it'll be 5/4

Answer 17

if you could do 3) on your own, you could do any of 3-10 the same way

Answer 18

the answers for 5 are: (2/5), (√ 21/5), (2/√ 21), (√ 21/2), (5/√ 21), (5/2)
where does the "√ 21" come from?

Answer 19

that was the missing side,
you know pythagoras theorem ?

Answer 20

yes I do: a^2+b^2=c^2
a is the side we are solving for right? and b=2 and c=5??

Answer 21

thats correct,.
so what you get 'a' as ?

Answer 22

a^2=21
-- a=√ 21 :D

Answer 23

good! :)

Answer 24

Thank you thank you!!!! You are the best!

Answer 25

welcome ^_^
you too are awesome!