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Calculus/Inverse trigonometric functions.

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Expert: - 2/10/2009


Question
Find the exact functional value without using a calculator.

tan^-1(cos(pi))



Not sure what to do here..

Answer
Questioner:   Brooke
Category:  Calculus
Private:  No
 
Subject:  problem.
Question:  Find the exact functional value without using a calculator.

tan^-1(cos(pi))



Not sure what to do here..
.......................................
well, cos(pi) = -1, isn't it?  That's a start.  Now you have:

arctan(-1), which means  tan x = -1.

You take it from there.

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Paul Klarreich

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All topics in first-year calculus including infinite series, max-min and related rate problems. Also trigonometry and complex numbers, theory of equations, exponential and logarithmic functions. I can also try (but not guarantee) to answer questions on Analysis -- sequences, limits, continuity.

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