Question

Evaluate. Write your answer as an integer or as a decimal rounded to the nearest hundredth. cos 34° =

Answer 1

Consider the given expresssion,

$\cos 34^{\circ}$

It is observed that 34 degrees cannot be written as a sum or difference of any combination of known angles i.e. 0, 30, 45, 60, 90 degrees.

So the value can only be determined using a calculator.

There we get,

$\cos 34^{\circ}=0.82904$

But it is asked to round off to the nearest hundredth, so there should be only two digits past the decimal. Therefore, the values becomes,

$\cos 34^{\circ}\approx0.83$

Thus, the value of the expression is 0.83 approximately.