Find the exact value of cos -1050.OA.-3OB.-12/2OC. 1OD. 1/3Reset Selection

asked Apr 13, 2023 214k views

2 votes

8.0k points

Please log in or register to add a comment.

4 votes

Solution:

Given;

$\cos(-1050)$

Rewrite the expression using;

$\cos(-x)=\cos x$

Thus;

$\begin{gathered} \cos(-1050)=\cos(1050) \\ \\ \cos(1050)=\cos(330) \end{gathered}$

Then;

$\cos(330)=(√(3))/(2)$

CORRECT OPTION: D

Idan Asulin answered Apr 17, 2023

8.3k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.2m questions

11.9m answers