Law of Sines

[low sage]

Let's start with 8. How can I tell if its law of sines or cosines? I've forgotten

[rain lake]

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[urban quest]

sines if you know two angles, cosines if you know an angle or no angles

[low sage]

so for this case it would be Cosines

[urban quest]

the left one is trickier

but right is cosines yes

[low sage]

thanks, what is next?

[cedar rover]

@low sage has given 1 rep to @urban quest

[urban quest]

did you solve the right side one

[low sage]

not yet

[urban quest]

just apply the formula

[urban quest]

isolate cosC

[low sage]

im also doing a law of sines problem, is this correct?

[low sage]

ill do that rn

[urban quest]

why are they using sines for that 😭

but yea that’s right

[low sage]

ty i was scared

[low sage]

seems like this is what they wanted

[low sage]

trying with my other one and it seems like my equation no longer works since it’s missing an angle and has a third side, but mine only works for 2 sides with an angle :(