Simplify.  figure 1.png)
(a) tan x
(b) sin 2x
(c) -cos x
(d) cos x
(e) -cos² x
(c) -cos x
Mathematics
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Express the number in scientific notation.0.0000004
A. 4 × 10-6 B. 4 × 10-8 C. 4 × 10-7 D. 4 × 10-9
Mathematics
Find the exact value of the indicated trigonometric function of ?.sec ? = 
, ? in quadrant IVFind tan ?.
A. - 
B. - 
C. - 
D. - 
Mathematics
Write as a fraction in lowest terms.0.002
A. 
B. 
C. 1
D. 
Mathematics
Use a scientific calculator to approximate the common logarithm. Round to four decimal places.log 196
A. 2.2945 B. 5.2781 C. 2.2923 D. 2.2900
Mathematics