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

question 46

Multiple Choice

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) \(\frac { 1 } { 2 }\)

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Definitions:

Rh Antigens

Surface proteins found on red blood cells that can cause immune response, distinguishing between different blood types.

Blood Typing

A laboratory procedure to determine an individual's blood group, crucial for safe blood transfusions and understanding Rh compatibility.

Antibodies

Proteins produced by the immune system to identify and neutralize foreign objects like bacteria and viruses.

Universal Donor

Refers to individuals with O-negative blood type, whose red blood cells can be transferred in a transfusion to individuals of any other blood type without causing an adverse reaction.