Use the fundamental identities to find the value of the trigonometric function.Find cos ? if tan ? = 3 and sin ? < 0.

A.
B. - 
C. - 10
D. - 


Answer: B

Mathematics

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Solve the problem.The flow F of a fluid in a plane is illustrated below. At which point or points would  point out from the page?

A. A B. C C. A and C D. B

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Find the domain and range of the function graphed.

A. domain: (-?, ?); range: (-?, 5) ? (5 ?) B. domain: {5}; range: (-?, ?) C. domain: (-?, ?); range: (-?, ?) D. domain: (-?, 5) ? (5, ?); range: (-?, ?)

Mathematics

Use the Binomial Theorem to expand the binomial and express the result in simplified form.(x + 4y)3

A. x3 + 12x2y + 48xy2 + 64y3 B. x3 + 4x2y + 8xy + 16xy2 + 32y2 + 64y3 C. x3 + 64y3 D. 3x + 12y

Mathematics

Use the given functions to find all values of x that satisfy the required inequality.f(x) = , g(x) = 1; f(x) < g(x)

A. (-?, 2] ? [8, ?) B. (-?, 2) C. (2, 8) D. (-?, 2) ? (8, ?)

Mathematics