Question

Evaluate. Write your answer as an integer or as a decimal rounded to the nearest hundredth. cos 81° = ___

Answer 1

0.16

Step-by-step explanation:

Given the trigonometry expression:

cos 81°

On evaluating using calculator;

Cos 81° = 0.1564

Converting to the nearest hundredth

Cos 81° = 0.16

Hence the value of cos81 to the nearest hundredth is 0.16