SOLUTION: Given that y = x + cosx , find dy/dx and the approximate change in y when x increases from π/6 to π/5.

SOLUTION: Given that y = x + cosx , find dy/dx and the approximate change in y when x increases from π/6 to π/5.

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Question 1192775: Given that y = x + cosx , find dy/dx and the approximate change in y when x increases from π/6 to π/5.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
You didn't mention how to get there so I'll be straightforward.

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Approximate change? Why not exact change in y?

So the change in y would be,

Approximate from there.
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