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Do you know the trigonometric identities? Sin and cosine?

cosine =adjustment/hypotenuse right

|dw:1349573615545:dw|

cos 50=x/90

cost 50=confused

cos 50=x/90

Yes. Multiply both sides by \(90\).

you multiply 50x90
right

No, you multiply 90 by cos 50.

50x90=4,500

i got 4,500

\[90\cdot\cos50\neq90\cdot50\]

i got 86.87

That sounds off.

im not sure

Do you know how to do \(90\times\cos50\)?

cosx50 right

No, \(\cos\) is an operation.

im getting 4,500 for some reason

im getting 50

i did cos 50

if i do 50 cos=0.9649

\(50\cos\neq\cos50\).

It's not a multiplication.

im getting 50

i click on cos and than i put 50
so i got 50

I have no idea what you're talking about. You sound confused. Do you know what \(\sin x\) is?

yes
on calculator

@swissgirl @bahrom7893 I can't tell what the confusion here is. Help me!

@nincompoop You are a better teacher.

Ok well on your calculator you should have this button called sin, cos and tan correct?

yes

allrrighhttyy so on your calculator type 90*Cos(50) then press enter

ohhhh u r on radians. You gotta set your calculator to degrees

oh that's the problem

i dont know why im getting 4,500

what i did is 90xcos50

you don't multiply when its cos(50) right

90*50=4500
But we are typing 90*Cos(50)
remember to include the Cos

Correct:)

so what's next

idk ask bad

Ask @nincompoop ... I have a terrible headache.

The cosine of a 50° angle is ____

@lgbasallote YOU.

The second most powerful. Most powerful is undoubtedly CleverBot. :P

Unfortunately, CleverBot is not programmed to give you right answers. Just data mine a lot.

ok who i should ask for help

Ugh, I don't know how to help because it seems you aren't clear about what you're confused on.

ok

i wasnt using the right calculator

now i got it