Use the fundamental identities to simplify the expression.
A. 1
B. cot2?
C. sec2?
D. csc2?
Answer: B
Mathematics
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Find the curvature of the space curve.r(t) = 
(1 + t)3/2i +
(1 - t)3/2j + 
tk
A. ? = 
B. ? = 
C. ? = 
D. ? = 
Mathematics
Solve the system of linear equations.6x - 5y = 203x + 3y = -12
A. (-1, -3) B. No solution C. (0, -3) D. (0, -4)
Mathematics
Solve the problem.A right triangle has an area of 33 square inches. The square of the hypotenuse is 157. Find the lengths of the legs of the triangle. Round your answer to the nearest inch.
A. 36 in. and 121 in. B. 12 in. and 5.5 in. C. 6 in. and 11 in. D. 3 in. and 22 in.
Mathematics
Graph the function.y = sec 
A. 
B. 
C. 
D. 
Mathematics