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🧮 Functions and equations · AddMath
Inverse of non-linear functions
💡 The idea
Write y = f(x) and rearrange to get x on its own, then swap x and y. With a fraction, multiply out and collect the x terms on one side.
📖 Worked example · same type, different numbers
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a⁄b
√
x²
x^
log
ln
∛
|x|
π
°
(
)
sin
cos
tan
sin⁻¹
cos⁻¹
tan⁻¹
7
8
9
⌫
AC
◀
4
5
6
×
÷
▶
1
2
3
+
−
=
0
.
×10ⁿ
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<
>
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≥
%
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eˣ
10ˣ
n!
∞
≠
±
Σ
∫
d/dx
ⁿCᵣ
ⁿPᵣ
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[ ]
{ }
i
j
e
a b⁄c
∩
∪
′
∅
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Worked solution
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That's the full method. Now try one like it yourself.