Question

How to find a?

Answer 1

what trig function does this represent?

Answer 2

a^2 = b^2 + c^2 - 2(a)(b) - cos A?

Answer 3

sin39=a/15

Answer 4

what function would you use when you are trying to find the adjacent side and you have the hypotenuse?

Answer 5

cosine?

Answer 6

soh cah toa. so yes cosine :) so you would do cos 39=a/15, multiply by 15 to get a by itself. so you are left with
15 sin 39

Answer 7

why did it change to sin?

Answer 8

it was never sin.

Answer 9

crap sorry i didnt mean sin D: 15 cos 39!

Answer 10

and am I right on this one?

Answer 11

yes you are :D

Answer 12

and what would this one be?

Answer 13

it would just be cos 5/13, it cant be reduced.

Answer 14

no it can't. & what about this one? Am I right

Answer 15

Am I right on this one too?

Answer 16

@Hope_nicole

Answer 17

tangent is opp/adj. so it would be 36/15

Answer 18

alright so Im right on this one?

Answer 19

other way around.

Answer 20

why you said oop/adj?

Answer 21

Am I doing it right now? :o

Answer 22

yeah that one is right

Answer 23

Alright & I have no idea what this is asking for?

Answer 24

do you know what csc is?

Answer 25

nope

Answer 26

yes its cotanget?

Answer 27

csc is the inverse of sin...so its 1/sin..

Answer 28

so it would be:

Answer 29

no cotangent is cot, the inverse of tangent.

Answer 30

alright so this is the inverse of sin?

Answer 31

well sin is 12/15/ so you need the inverse of that.

Answer 32

so 5/4

Answer 33

so this one is false its 13/5

Answer 34

& so secant is the reciprical of sine?

Answer 35

secant is the inverse of cosine

Answer 36

Alright so On this one am I right?

Answer 37

@Hope_nicole

Answer 38

yeah :D

Answer 39

so this one is false right?

Answer 40

They forgot to flip it? @Hope_nicole

Answer 41

correct so its false

Answer 42

THANKS SOOO SOOO SOOOO SOOO MUCH! @Hope_nicole

Answer 43

anytime :D