Use the cofunction and reciprocal identities to answer the question.sec 60° = _____ 30° = 

A. csc, cos
B. cos, sin
C. csc, sin
D. csc, tan


Answer: A

Mathematics

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Evaluate the definite integral.dt

A.
B.
C.
D.

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Find a so that the statement is true.

A. 8 B. 0 C. 7 D. 5 E. 6

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Solve the problem.Determine a polynomial that represents the area of a square having sides of length 

A. 64x2 - 72xy + 81y2 B. 64x2 + 144xy - 81y2 C. 64x2 - 144xy + 81y2 D. 64x2 - 144x + 81y

Mathematics

Solve the system of equations using Cramer's Rule if it is applicable. If Cramer's Rule is not applicable, say so.

A. not applicable B. x = 0, y = 0, z = 1; (0, 0, 1) C. x = 2, y = 1, z = 0; (2, 1, 0) D. x = 0, y = 1, z = 0; (0, 1, 0)

Mathematics