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23.06.2019 •
Mathematics
Trig question save mee simplify each expression to one trig function or number
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Ответ:
sec(x)
Step-by-step explanation:
tan x * sinx + cos x
Tan x = sin x/ cos x
Replace tan x in the equation
sinx /cosx * sin x + cos x
sin^2 x / cos x + cos x
We know sin^2 x = 1 -cos^2 x
Replace sin^2 with 1 -cos ^2 x
(1 -cos^2 x) / cos x + cos
Distribute the denominator
1 /cos x - cos x + cos x
Combine like terms
1/cos x
sec x
Ответ:
The absolute value is -2
Step-by-step explanation:
2(3-8)+8
2×3 - 2×8 + 8
6 - 16 + 8
-10 + 8
-2