10) Given sin 0 = 0.259 and tan 0 = -0.268,
determine cos 0. Keep your answer rounded
to four decimal places.
ERIES
S
TU
A) cos 0 = -0.9664
REST
B) cos 0 = 0.9664
TERET
C) cos 0 = -0.9700
D) cos 0 = 0.9700

(A) cos = -0.9664

Step-by-step explanation:

Given

Sine is Positive and Tangent is Negative in Quadrant II.

In Quadrant II, Cosine is also Negative.

Closest Option is A.

a reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .