Find the exact values of sin A and cos A. Write fractions in lowest terms.

Question

anonymous · Answer

attachment

anonymous · Answer

@PFEH.1999 Can you help with this one?

anonymous · Answer

Or can anyone?

jdoe0001 · Answer

http://www.mathwarehouse.com/trigonometry/images/sohcohtoa/sohcahtoa-all.png what do you think is the cos(A) and sin(A)? keep in mind, they're asking for the values for the $\bf \measuredangle A\ not \ of\ \measuredangle B$

jdoe0001 · Answer

the opposite side of B is not the opposite side of A and  so on
so you'd need the proper sides for angle A

anonymous · Answer

Im not sure, can you just tell me the answer and how you found it? this is a practice problem i have other ones i can do on my own.

jdoe0001 · Answer

the opposite side to any angle, is the side that's "facing it off"
so the opposite to say, angle B, is 36, because side 36 is "facing off" B

now you need it for A, well, the side facing off angle A is 48, so that's A's opposite side

the adjacent side to any angle, would be one of the shorter side that makes up the angle,   the angle is made by 2 sides making a "corner", well, the shorter of those 2, is the adjacent

jdoe0001 · Answer

for the case of A, is 36

and the hypotenuse, will be the longest one, that is, 60

anonymous · Answer

My answers are in fraction form

anonymous · Answer

They are:
A. sin 3/5 cos 4/5
B. sin 4/3 cos 3/4
C. sin 5/4 cos 5/3
D. sin 4/5 cos 3/5

jdoe0001 · Answer

yes, that'd be in a fraction form

jdoe0001 · Answer

what did you get for cosine? and sine?

dumbcow · Answer

the general rule for learning trig ratios is using the acronym
SOH CAH TOA

Sin = Opposite/Hypotenuse
Cos = Adjacent/Hypotenuse
Tan = Opposite/Adjacent

anonymous · Answer

I dont know, you did the problem.

anonymous · Answer

Is sin 3/5?

jdoe0001 · Answer

hmm... based on the numbers you're given in the picture, what would be the the sin(A)?

anonymous · Answer

Im confused, can someone please just tell me the answer and how to get it?

jdoe0001 · Answer

http://www.mathwarehouse.com/trigonometry/images/sohcohtoa/sohcahtoa-all.png

jdoe0001 · Answer

anything confusing about that picture?

anonymous · Answer

No, would sin be 5/4?

jdoe0001 · Answer

well, on your picture, you don't have any sides with 5 or 4..... so based on those numbers
the sine will be something else

anonymous · Answer

sine is 60/36 but i was talking about simplified...

anonymous · Answer

36/60 i mean

anonymous · Answer

which is 3/5 right?

jdoe0001 · Answer

36/60 will be the sine of B

the opposite side to any angle, is the side that's "facing it off"
so the opposite to say, angle B, is 36, because side 36 is "facing off" B

now you need it for A, well, the side facing off angle A is 48, so that's A's opposite side

the adjacent side to any angle, would be one of the shorter side that makes up the angle,   the angle is made by 2 sides making a "corner", well, the shorter of those 2, is the adjacent

anonymous · Answer

Im sorry, but can you please just tell me the answer and how you got it? i have other practice problems i want to do and this is taking forever.

anonymous · Answer

@PFEH.1999 can you please help me?

anonymous · Answer

@jdoe0001 Can you please help me with the answer?

anonymous · Answer

ANNNNYYYONEEE?