Question

I am hopelessly confused. Can someone please help me with Trig?
What's the value of n?

Answer 1

use a trigonometric relationship

Answer 2

for example sin=opposite/hypotenuse

Answer 3

I tried that, and if I did it even remotely correct it didn't match any of the answers.

Answer 4

show me what you set up and put into your claculator

Answer 5

For sin I didn't know if I should have put 90 or not but I did...sin(90)
After that though nothing matched and I just don't understand it at all. For opposite and hypotenuse I do know would be 5 and 10 correct?

Answer 6

we're trying to find the value of angle n

Answer 7

I know, but how would I want to set that up then? I watched videos my teacher had on her message board but it was entirely different.

Answer 8

what would sin(angle n) be?

Answer 9

keep in mind the sin of any angle is the side opposite over the hypotenuse

Answer 10

Would I set it up sin(5/10) then? I got .48

Answer 11

you're supposed to be using arcsin

Answer 12

or inverse sin

Answer 13

\(\sin(n)=\dfrac{5\sqrt3}{10}\\arcsin(sin(n))=arcsin(\dfrac{5\sqrt3}{10})\\n=arcsin(\dfrac{5\sqrt3}{10})\)

Answer 14

If I calculate that I get like 1/10 but my options are 1/2 squareroot 3/3 square root 3/2 and square root 3

Answer 15

can you post the full question? does it ask for n or N?

Answer 16

cause I'm getting <N=pi/3

Answer 17

or 60 degrees

Answer 18

It is asking in the questions, what is the value of Sin N?

Answer 19

oh, it's just \(\dfrac{5\sqrt3}{10}\)

can you simplify that fraction?

Answer 20

I got .069

Answer 21

don't just enter it into your calculator
there's a basic reduction that can be done

we want to keep it in terms of the radical 3

Answer 22

I guess it'd be easier to see if I rewrite it. \(\dfrac{5\sqrt3}{10}=\dfrac{5}{10}*\sqrt3\)

Answer 23

radical 3/2?

Answer 24

aye aye

Answer 25

Thanks! In one question though it gave me the lengths of the sides but is asking me to find the degree of an angle. It is a right angle was there any special way to go about that at all or just go by what you showed me how to do?

Answer 26

you can either use inverse trig functions or side ratios

for example, if it's a 45-45-90 triangle and you have 1 side, you can figure out the others'

same if it's a 30-60-90