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What is the value of $sin 3 0^{\circ}$ ?

easy MCQ 1 mark Class 10 · Mathematics · Introduction to Trigonometry

$\frac{3}{2}$
$\frac{1}{2}$
$\frac{2}{2}$
$1$

Answer

\frac{1}{2}

The correct answer is $\frac{1}{2}$ — Therefore the required value is $\frac{1}{2}$ .

Step-by-step solution

Recall the definition of sine for the special angle $3 0^{\circ}$ .
From the standard trigonometric table, $sin 3 0^{\circ} = \frac{1}{2}$ .
Therefore the required value is $\frac{1}{2}$ .

Common mistake: Confusing

sin 3 0^{\circ}

with

cos 3 0^{\circ}

or

\frac{3}{2}

.

Concept tested: Basic trigonometric ratio

Published 20 August 2026 · How this solution was prepared and checked

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