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Mathematics 8 Online
OpenStudy (sbuck98):

Someone help me please, I'll fan, medal, and help you in any other subjec

OpenStudy (sbuck98):

@vishweshshrimali5

OpenStudy (vishweshshrimali5):

Again we will use tan formula

OpenStudy (sbuck98):

so I do 8/7 or 7/8?

OpenStudy (vishweshshrimali5):

8/7

OpenStudy (sbuck98):

1.14

OpenStudy (sbuck98):

and now I do the tan of that right?

OpenStudy (vishweshshrimali5):

Now what will be the angle?

OpenStudy (sbuck98):

48.74

OpenStudy (vishweshshrimali5):

Perfect!

OpenStudy (sbuck98):

it showed it was incorrect

OpenStudy (vishweshshrimali5):

Try entering 48.8

OpenStudy (vishweshshrimali5):

Wait to nearest thousandth

OpenStudy (vishweshshrimali5):

48.814

OpenStudy (sbuck98):

that worked

OpenStudy (sbuck98):

48.8 was right

OpenStudy (vishweshshrimali5):

Okay !

OpenStudy (sbuck98):

OpenStudy (vishweshshrimali5):

Now time to introduce a new formula... now we will use cos... |dw:1459131555362:dw|

OpenStudy (vishweshshrimali5):

So, what will be cos x in the question?

OpenStudy (sbuck98):

9/5

OpenStudy (sbuck98):

wait.. 5/9

OpenStudy (vishweshshrimali5):

Yeah! 5/9

OpenStudy (sbuck98):

so I find the decimal or just type it in with cosine?

OpenStudy (vishweshshrimali5):

So for finding out x, use cos -1 this time

OpenStudy (sbuck98):

ok!

OpenStudy (sbuck98):

56.25

OpenStudy (vishweshshrimali5):

Perfect!!

OpenStudy (sbuck98):

is that my answer?

OpenStudy (vishweshshrimali5):

Yeps

OpenStudy (sbuck98):

ok thats rounded to the nearest hundredth?

OpenStudy (vishweshshrimali5):

Yeah

OpenStudy (sbuck98):

OpenStudy (vishweshshrimali5):

Again use cos

OpenStudy (vishweshshrimali5):

What will be cos x?

OpenStudy (sbuck98):

2/5

OpenStudy (vishweshshrimali5):

Perfect

OpenStudy (sbuck98):

66.42 is that rounded to the nearest hundredth?

OpenStudy (vishweshshrimali5):

Wait

OpenStudy (vishweshshrimali5):

Yeah

OpenStudy (sbuck98):

OpenStudy (vishweshshrimali5):

Again... cos

OpenStudy (vishweshshrimali5):

cos x is ?

OpenStudy (sbuck98):

2/7

OpenStudy (vishweshshrimali5):

Perfect1

OpenStudy (sbuck98):

73.398 which is rounded to 73.40 right?

OpenStudy (vishweshshrimali5):

Yeps

OpenStudy (sbuck98):

OpenStudy (vishweshshrimali5):

This one is what i was looking for

OpenStudy (vishweshshrimali5):

Time to introduce the last one sin... |dw:1459132328746:dw|

OpenStudy (sbuck98):

7/9

OpenStudy (vishweshshrimali5):

So what will be sin (x) ?

OpenStudy (vishweshshrimali5):

Perfect

OpenStudy (vishweshshrimali5):

Now, to find x use sin-1

OpenStudy (sbuck98):

do I use sin-1?

OpenStudy (vishweshshrimali5):

Yeps

OpenStudy (sbuck98):

51.057 which rounds to 51.06?

OpenStudy (vishweshshrimali5):

Yeps

OpenStudy (sbuck98):

OpenStudy (vishweshshrimali5):

Again sin x

OpenStudy (vishweshshrimali5):

So what is sin x here?

OpenStudy (sbuck98):

4/9

OpenStudy (vishweshshrimali5):

Perfect!

OpenStudy (vishweshshrimali5):

So what will be x?

OpenStudy (sbuck98):

26.387 which rounds to 26.39?

OpenStudy (vishweshshrimali5):

Yeps

OpenStudy (sbuck98):

OpenStudy (vishweshshrimali5):

This time also we will use sin... but since we are already given the angle.. we can find out the sin of it

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