Find the exact value of the expression without the use of a calculator.tan 205° + tan 315° - tan 25°

A. 0
B. 0.5
C. 1
D. -1


Answer: D

Mathematics

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Write the standard equation for the circle.Center at (14, 1), passing through (14, 0)

A. (x - 1)2 + (y - 14)2 = 196 B. (x - 14)2 + (y - 1)2 = 1 C. (x - 1)2 + (y - 14)2 = 1 D. (x - 14)2 + (y - 1)2 = 196

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Solve. x2 - 3y2 = 14x2 + 3y2 = 19

A. (2, 1) and (-2, -1) B. (1, 2), (-1, 2), (1, -2), (-1, -2) C. (2, 1), (2, -1), (-2, 1), (-2, -1) D. (-1, 2) and (1, -2)

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Find the requested vector.w = 2i + 4j - kFind a vector orthogonal to both w and j + k.

A. 5i - 4j + 4k B. 3i - 3j - 3k C. 2i - 2j + 5k D. 5i - 2j + 2k

Mathematics

Evaluate the expression using the order of operations.

A. -34 B. 17 C. -17 D. 8

Mathematics