Select the Functions That Have Identical Graphs $y = \cos x$

question 439

Multiple Choice

Select the functions that have identical graphs.
-(i) $y = \cos x$
(ii) $y = - \sin ( x - \pi )$
(iii) $y = \cos \left( x - \frac { \pi } { 2 } \right)$

• A) \(\mathrm { i }\) and iii
• B) \(i\) and ii
• C) ii and iii
• D) \(i\), ii and iii

---

Definitions:

Dream Interpretations

The analysis of dreams to uncover their underlying meanings, symbols, and implications for the dreamer’s waking life.

Testable

Pertaining to a hypothesis or theory that can be empirically investigated to determine its validity.

Manifest Content

The specific details and plot of a dream as recalled by the person who experienced it.

Motorcycle Trip

A journey or excursion taken on a motorcycle, often implying a sense of adventure or exploration.