Question

If sin A = 15/17, What is the measurement of ∠Α and ∠B ?

Answer 1

sin A = 15/17

arcsin(sin A) = arcsin(15/17) ... apply the arcsine function to both sides

A = 61.927513 ... use a calculator (this is approximate)

Answer 2

I'll let you compute angle B

Answer 3

Ok how would i compute this without a TI Calculator?

Answer 4

with a table is your next best bet

Answer 5

Thats my issue with understanding these questions

Answer 6

you can't do something like this by hand

Answer 7

I'd use a calculator if you can

Answer 8

ok

Answer 9

keep in mind that arcsin is the same as \(\large \sin^{-1}\) or inverse sine

Answer 10

ok, that i am not familiar with. I just got help with cos and tan.

Answer 11

if you have a TI calculator, the inverse sine is found by hitting 2nd, then the sine button

Answer 12

oh i dont have one

Answer 13

using a regular calculator

Answer 14

ok you can use google as a calculator

type "arcsin(15/17) in degrees" without quotes into google to get

https://www.google.com/search?q=arcsin%2815%2F17%29+in+degrees&ie=UTF-8

Answer 15

Oh ok thank you.

Answer 16

Let me work this out i will come back and see if i did it right

Answer 17

to get the measure of angle B = arcos(15/17) = arcsin(8/15)

Answer 18

it's arccos and not arcos

Answer 19

oh sorry

Answer 20

that's ok

Answer 21

but am i correct for 8/15

Answer 22

and arcos(15/17) = arcsin(8/15) is simply not true at all

Answer 23

Oh ok i will try again

Answer 24

if you meant arccos(15/17) = arcsin(8/17), then you are correct

Answer 25

for my answer i got 25.20

Answer 26

for which one again?

Answer 27

for angle B

Answer 28

close, but it's a bit smaller than it should be

Answer 29

hint: A+B = 90

Answer 30

oh dang it..

Answer 31

A and B are complementary angles

Answer 32

Oh i see where i went wrong. Let me try again.

Answer 33

Ok i think i got it now, The measure of angle B=28.07

Answer 34

yes approximately

Answer 35

Thank you.

Answer 36

you're welcome