Without using a calculator, give the exact trigonometric function value with rational denominator.
-$\sin 30 ^ { \circ }$
A) $\frac { \sqrt { 3 } } { 2 }$

B) $\frac { \sqrt { 2 } } { 2 }$

C) $\sqrt { 3 }$

D) $\frac { 1 } { 2 }$

Question

Without using a calculator, give the exact trigonometric function value with rational denominator.
-$\sin 30 ^ { \circ }$
A) $\frac { \sqrt { 3 } } { 2 }$

B) $\frac { \sqrt { 2 } } { 2 }$

C) $\sqrt { 3 }$

D) $\frac { 1 } { 2 }$

Quizplus · Accepted Answer

The exact value of $\sin 30^\circ$ is $\frac{1}{2}$, as it is a well-known result from the unit circle and trigonometric functions.

Without Using a Calculator, Give the Exact Trigonometric Function Value sin⁡30∘\sin 30 ^ { \circ }sin30∘

Without Using a Calculator, Give the Exact Trigonometric Function Value $\sin 30 ^ { \circ }$