The tangent of 30 degrees equals:
A1 by root 2
BRoot 3 by 1
CRoot 2 by 1
D1 by root 3
Answer & Solution
Correct answer: D. 1 by root 3
1. Thirty and sixty are complementary angles.
2. Their tangents are reciprocals of each other.
3. So tan 30 is 1 by root 3.
_Source: syllabus Mathematics Class X, Chapter 9, Some Applications of Trigonometry._
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