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

question 244

Multiple Choice

Select the functions that have identical graphs.
-(i) $y = \cos x$
(ii) $y = \sin x$
(iii) $y = \sin \left( x + \frac { 5 \pi } { 2 } \right)$

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

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