Find the Exact Value of the Expression $\frac { 1 } { 2 }$

question 155

Multiple Choice

Find the exact value of the expression.
-sin 30°

• A) \(\frac { 1 } { 2 }\)
• B) \(\frac { \sqrt { 3 } } { 3 }\)
• C) \(\frac { \sqrt { 3 } } { 2 }\)
• D) \(\frac { \sqrt { 2 } } { 2 }\)

Understand the impact of early life experiences and cultural context on attachment and development.

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Explain the psychosocial development theory of Erik Erikson across different stages of life.

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Definitions:

Ca

The chemical symbol for calcium, an element with atomic number 20, essential for living organisms, particularly in cell physiology and bone formation.

Neutrons

Electrically neutral subatomic particles found in the nucleus of an atom, contributing to the atom's mass but not its charge.

Isotope

Variants of a particular chemical element which differ in neutron number, and subsequently in mass, but share the same number of protons.

Protons

Subatomic particles found in the nucleus of every atom, possessing a positive electric charge.