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|dw:1441828737649:dw|

csc is reciprocal of 1/sin
sec is reciprocal of 1/cos
cot is reciprocal of 1/tan

makes sense. so then to solve for sinx
sinx=5/a

right?

first ) apply the Pythagorean theorem to find 3rd side of right triangle \[\huge\rm a^2+b^2=c^2\]

yes right but first find c (hypotenuse )
let hypotenuse = c

okay so 25+49=74

and the sqrt of 74 is the hypotenuse

yes right that is c^2 but we need c

yes right

which is 8.6

do i keep it
sin(x)=5/sqrt74
or do i simplify

okay

yes simplify solve for x

i get a crazy weird number when i try to calculate that

understand ? ?//

okay hold on

i get sinx=.0011792563

when we have to find an angle then we should use `invs sin` \[x = \sin^{-1} \frac{ 5 }{ 8.6 }\]

or in other words `arcsin` http://prntscr.com/8eiznl

okay so you just keep it that way, no more simplifying?

no use calculator to find x \[x = \sin^{-1} \frac{ 5 }{ 8.6 }\]

alright so x=8.6

hmm not x isn't 8.6
the hypotenuse = 8.6

|dw:1441834691882:dw|

type this into the calculator \[ \sin^{-1} \frac{ 5 }{ 8.6 }\]

I did

it gave me 8.6

wait no it gives me .0011792563

hmm not sure how u got that
what did you type into the calculator ?

i typed x^-1 before then sin(5/8.6)

it's sin^{-1} not x^{-1}
arcsin =sin^{-1}

okay so 98.55

that is what i get when i put the inverse second after the other part of the equation

on ti-84 calculator ?

yeah

x^-1 is inverse

for that calculator press `2nd-sin` then type (5/8.6)

Ahh I see, way more acurate answer.
x=35.55

got it !

that's right !

okay and then we have to find the csc of y, an you help

can*

y=54.5

yes right

there is no csc button

with same triangle ?

i know but csc = 1/sin
so it should be i /sin^{-1}(7/8.6)

yes same triangle
Okay let me try that

so plug in
1/sin(-1) (7/8.6) ????

welll i plugged in sin^{-1} (7/8.6) i got 54.48

still don't understand anyways move to the next one

yes tan x

alright try it first
remember cot is reciprocal of tan

well tan(x)=5/7

right solve for x !

Okay so I would just multiply by 7 on each side and that makes it
7tan(x)=35

well you don't have to multiply by 7
just take the invs tan and then calculator

okay so i did 2nd, tan(5/7) and i got 35.54

perfect!

i did it? is that it lol

yes right that's tan x

okay so now to find cot y

wouldnt it just be cot y = 7/5

oh is it just tan(5/7)

tan y = what ?

well it is inverse tan so i figured you use tan when calculating

well you did the opposite
tan = opposite over adjacent
and cot = adjacent over opposite

so you keep it the way it is but just dont take the iverse? sine we took the inverse to find tan x

inverse
since *

is it just find sin x or solve for x ?

or like what is x and y ?

ye then cos = adjacent over hyp
so same concept with sec just like cot
i think ur afk

i've to go now.

okay i see. Thanks for your help!!!

yw