got any tricks to remembering trigonometric identities?

My trick is superior genes. So I can't help you with that untill gene therapy may be able to help you with that.

>>8676386
how do you know i'm not too inferior to refuse?

> doing maths
> learning tricks

Change that dirty mindset of yours if you ever want to go further. You're litteraly asking how to become a fucking mindless idiot.

Btw if you want to find the identities, just write that [math] e^{i(a + b) = e^{ia} \times e^{ib}[/math].

>>8676393
Why? They're just fucking addition and subtraction of graphs, it's fucking tedius, and as an architect I may never use it, but as a prerequisite I may be asked to derive them
one application of derivatives in architecture is resonances in beams

>>8676392
I don't. And I don't care about you refusing, that's your pejorative.

>>8676397
the derivatives I mean

[math]a^{2}+b^{2} = c^{2}[/math]

>>8676411
i'm talking deriving trigonometric'(s)
i'd rather pound your ass than pound them into my head

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>>8676414
pic related, it's u

>>8676393
>doing maths
>learning tricks

man, those mindless idiots who memorized the times and addition tables

>>8676414
[math]2a\frac{da}{dx}+2b\frac{db}{dx} = 2c\frac{dc}{dx}[/math]

ok I got two, sin usually comes above cos in charts or w/e, so sin(x+h) (superior) is positive while cos(x+h) is negative (inferior), and they are both of the positive because all knowledge is positive
the bane of this is that the shortest line to the opposite side is the adjacent side

for all it's worth, mathematics is just a fucking magikarp unless you combine it with something to get a Gyrados

anode= -
cathode=+
is actually backwards
so cos=cathode
sin=anode
this is for the addition identities of sin & cos

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>>8676403
Just plot them then

>>8676397
>tedius
found the engineer

>>8676376

don't

if you want to find an identity write it out as a fraction using sides of a triangle (opposite/hypotenuse/adjacent)

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[math] \displaystyle
\begin{matrix}
angle & sin & cos \\
0 & \sqrt{0}/2 & \sqrt{4}/2 \\
\pi/6 & \sqrt{1}/2 & \sqrt{3}/2 \\
\pi/4 & \sqrt{2}/2 & \sqrt{2}/2 \\
\pi/3 & \sqrt{3}/2 & \sqrt{1}/2 \\
\pi/2 & \sqrt{4}/2 & \sqrt{0}/2
\end{matrix}
[/math]