How do you use a calculator to evaluate $cot15^circ14'$ ?

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Answer 1 · 2017-01-20T19:12:31

Please see the explanation.

Make sure that your calculator is in degree mode.

Divide 14 by 60
Add 15

The displayed number should be $15.2333...$

Use the tangent function

The displayed number should be 0.27231880(and so on)

Use the 1/x key

The displayed number should be 3.672166(and so on); this is the $cot(15^@14')$

How do you use a calculator to evaluate cot15^circ14'cot15^circ14'?