MaxWong

"how can you not know" in Cantonese is not a very rude term so sorry.... :(

I am trying to make an alternative choice for getting help quickly because if you type "help quick" in your question title and no one is online in the forum, that's no use. Some urgent users on the forum can't get instant help and usually until when they say "OK nothing" so you know we missed this question. So one of the functions of the Chat Site is to notify people there is an urgent question by posting a question and then send the link to the group and that's the main function of it. Others include some fun, perhaps? :)

~Cookie

It is non-official.... That means it isn't made by a staff of this website
And Discord is an app for chatting how can you not know.......

Also not "service" it's "server", that means a thing that connects the user of the app to chat together, like a "group".

No need to separate I got it.

Area of a star(regular) of side length a

= \(\left(\dfrac{5\sqrt{10-2\sqrt5}}{8}+\dfrac{(3-\sqrt5)(\sqrt{10+2\sqrt5}+2\sqrt{5+2\sqrt{5}})}{8} \right)\cdot a^2\)

Checked. No mistakes. Just substitute and use a calculator :D

Although it is really complicated......

Anyone know what I am doing XD

Multiply 2x inside the bracket :D

2x(3x + 2)

=(2x)(3x)+2(2x)

= 6x^2 + 4x

Cut it? XD

JK

Use the base change formula: \(\log_a b =\dfrac{\ln b}{\ln a}\)

Really funny question huh

You don't need to find x and y

Link the diagonals of the square from the top right corner to the bottom left corner

x^2 + y^2 is just the length of the line you draw squared.

The length of the diagonal is just the diameter of the circle

Therefore length of that diagonal = 5 * 2 = 10

Therefore x^2 + y^2 = 10^2 = 100 :D

~The smartest cookie in the world.

m angle EBC = 90 deg because the question says EB is tangent to circle

cos (angle ECB) = radius/(2 * radius) = 1/2

m angle ECB = 60 deg

Therefore m angle BAD = 60 deg / 2 = 30 deg :D

Idk

Maybe you define f(x) = -e^(x+3)-4 ;D

But 2nd one don't know sry......