trigonometry 💔✌️

[supple notch]

hey so i dont understand like how to do these like for question 12 like i got yeah idek pls help like help

[outer wind]

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[supple notch]

pls im so desperate

[tulip crater]

Do you remember the general solution of sin(x) = a?

[supple notch]

um

inverse sin

of a

right gang

[tulip crater]

I mean the general solution, not jsut x = arcsin(a).

[supple notch]

💔✌️um..

im not sure what u mean brochaco💔im sorry

[tulip crater]

The general solution of sin(x) = a is:
x = arcsin(a) + 2πn, n ∈ ℤ
x = π - arcsin(a) + 2πm, m ∈ ℤ
I recommend reviewing the general solutions of elementary trigonometric equations if you don't remember them.

[supple notch]

💔what the helly

[tulip crater]

What?

[supple notch]

guys i dont rmemebr my teacher doing arcsin and all tht tho

like i dont think we even learnt that

but he told us fhat we should be able to do these anyways

so im like confused

[tulip crater]

But you just said you did.

[supple notch]

HUH

chat is arcsin the same as inverse sin

✌️💔

[tulip crater]

Um...

Well, first, yes.

[supple notch]

oh rlly

💔✌️

whats rhe z thing

[tulip crater]

Second, why are you saying "chat"? At the moment we're the only two ones here...

[supple notch]

coz its funny

and im weird like that

[tulip crater]

Uh, ok...

[tulip crater]

ℤ is the set of integers, as usual.

[supple notch]

oh what the heck

whats n

and m

[tulip crater]

Those are parameters of the solution. After all, any elementary trigonometric equation has infinitely many solutions (if it has any at all).

You should really review the topic again, to be honest.

[supple notch]

💔how

[tulip crater]

Read the respective chapter in your textbook, try solving some elementary equations.

[supple notch]

okay sigma but is question ten even doable its not even equal to anything ive never sene a question like that

[tulip crater]

Well, if you take y = x/2, then it's an elementary trigonometric equation.

So, you can find y, then you can find x = 2y, and then find the solutions belonging to the given interval.

[supple notch]

ok sigma

[shy cobalt]

@supple notch

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[supple notch]

+close

[shy cobalt]

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