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Is tan 30 equal to 1?

MathematicsClass 10CBSEAnswered 19 May 2026
Answer

No. tan 45° = 1 (not tan 30°). Quick reference:

Angletan value
0°0
30°1/√3 ≈ 0.577
45°1
60°√3 ≈ 1.732
90°undefined

Point: tan 30° = 1/√3 ≈ 0.577. It is less than 1. Only tan 45° equals exactly 1.

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