Find the value of given trigonometric function. Round your answer to four decimal places. $\cos ( - 1.7 )$
A) $\cos ( - 1.7 ) \approx 0.0712$
B) $\cos ( - 1.7 ) \approx - 0.0288$
C) $\cos ( - 1.7 ) \approx 0.1288$
D) $\cos ( - 1.7 ) \approx - 0.1288$
E) $\cos ( - 1.7 ) \approx - 0.2288$

Question

Find the value of given trigonometric function. Round your answer to four decimal places. $\cos ( - 1.7 )$ 
A) $\cos ( - 1.7 ) \approx 0.0712$
B) $\cos ( - 1.7 ) \approx - 0.0288$
C) $\cos ( - 1.7 ) \approx 0.1288$
D) $\cos ( - 1.7 ) \approx - 0.1288$
E) $\cos ( - 1.7 ) \approx - 0.2288$

Quizplus · Accepted Answer

The cosine function is even, meaning $\cos(-x) = \cos(x)$. Calculating $\cos(1.7)$ gives approximately -0.1288.

Find the Value of Given Trigonometric Function cos⁡(−1.7)\cos ( - 1.7 )cos(−1.7)

Find the Value of Given Trigonometric Function $\cos ( - 1.7 )$