Ask your own question, for FREE!
Mathematics 9 Online
OpenStudy (anonymous):

Help on trig. find the number of distinct solutions.

OpenStudy (akashdeepdeb):

Can you, maybe, redraw the figure?

OpenStudy (anonymous):

What do you mean like in what way?

OpenStudy (akashdeepdeb):

Oh, now I see it. I think something is malfunctioning on OS. Alright let me see.

OpenStudy (anonymous):

ok haha

OpenStudy (akashdeepdeb):

So what do you have to find here?

OpenStudy (anonymous):

Just if it has 1,2 or 3 solutions or is it no solution

OpenStudy (anonymous):

2

OpenStudy (anonymous):

Why @sourwing

OpenStudy (anonymous):

what's sin(28)15?

OpenStudy (anonymous):

7.042

OpenStudy (anonymous):

is that less than 9?

OpenStudy (anonymous):

Yes

OpenStudy (anonymous):

so there are 2

OpenStudy (akashdeepdeb):

I think, @sourwing m you should explain your concept a little better.

OpenStudy (anonymous):

do you know why sin(28)15 < 9 has two solutions?

OpenStudy (anonymous):

Mmm not really lol

OpenStudy (anonymous):

|dw:1394234884658:dw|

OpenStudy (anonymous):

what do you think sin(28)15 represent?

OpenStudy (anonymous):

The height?

OpenStudy (anonymous):

correct. Now look at the third length, which is 9. 9 > sin(28)15, so how many triangles are possible?

OpenStudy (anonymous):

Third length?? where is this?

OpenStudy (anonymous):

oh nvm sorry i thought you said "9.9"

OpenStudy (akashdeepdeb):

Do you know the sine law or the sine rule @Kelsey42 ?

OpenStudy (anonymous):

I guess I should not have called it third side. Look at the side that is opposite of the angle

OpenStudy (akashdeepdeb):

I think the answer should be '1'.

OpenStudy (anonymous):

@AkashdeepDeb no, there's 2

OpenStudy (anonymous):

yeah i do know the law of sines

OpenStudy (anonymous):

so since 9 > sin(28)15 this means???

OpenStudy (anonymous):

good question. how many triangles do you think can be formed?

OpenStudy (akashdeepdeb):

|dw:1394235219363:dw|

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!