Evaluate cos 300' without using a calculator, 2 O A. 1 / O B. 1 о c va

Tomer W asked Sep 25, 2023

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34 votes

Evaluate cos 300' without using a calculator,

2
O A. 1 /
O B. 1
о
c
va

Tomer W asked Sep 25, 2023

2.6k points

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16 votes

Answer:

$Cos \ 300 = (1)/(2)$

Explanation:

$\sf \boxed{Cos \ (2\pi - \theta) = Cos \ \theta}$

Cos 300 = Cos ( 360 - 60)

= Cos 60

$\sf = (1)/(2)$

Wilto answered Oct 1, 2023

by Wilto

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