Simplify the expression cos (tan-1(x/2)).
2 answers:
\cos (\tan \left( -1\right) (\frac{x}{2}))
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Simplify
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Combine multiplied terms into a single fraction
\cos (\tan \left( -1\right) \cdot \frac{x}{2})
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\cos (\frac{\tan \left( -1\right) x}{2})
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Solution
\cos \left( \frac{\tan \left( -1\right) x}{2}\right)
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Answer:
Step-by-step explanation:

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n - 12 = -9
Add 12 to both sides to isolate the variable n.
n = -9 + 12
n = 3
B) n = 3
Answer:
82 words per min
Step-by-step explanation:
all you have to do is divide 410 by 5 (410/5)
410/5 = 82
The difference is -10 because
9-10= 1
-1-10= -11
-11-10= -21
common difference means you add and common ratios means you multiply.
hope this helps!