Solve the Problem $y = \cos x$ At $x = \frac { \pi } { 2 }$

question 455

Multiple Choice

Solve the problem.
-Find the tangent to $y = \cos x$ at $x = \frac { \pi } { 2 }$ .

• A) \(y = - x + \frac { \pi } { 2 }\)
• B) \(y = - x - \frac { \pi } { 2 }\)
• C) \(\mathrm { y } = 1\)
• D) \(y = x + \frac { \pi } { 2 }\)

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