Conditional Tangent Sum Π identity (textIf A+B+C=pi, tan A+tan B+tan C=tan Atan Btan C)
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textIf A+B+C=pi, tan A+tan B+tan C=tan Atan Btan C
What each symbol means
| Symbol | What it stands for |
|---|---|
| A, B, x, a, b | As in standard NCERT treatment; domain restrictions apply for tan. |
When to use this
Standard NCERT conditions; tan identities exclude odd multiples of π/2 where undefined.