Verify the identity.(sec x - tan x)(sec x + tan x) = 1

What will be an ideal response?


(sec x - tan x)(sec x + tan x) = sec2x - tan2x = 1

Mathematics

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Write the decimal as a percent.0.2753

A. 27.53% B. 2.753% C. 2753% D. 0.2753%

Mathematics

Find the foci of the given hyperbola.9x2 - y2 = 9

A. (0, ), (0, -)
B. (0, 3), (0, -3)
C. (3, 0), (-3, 0)
D. (, 0), (-, 0)

Mathematics

The graph of a function f is given. Use the graph to answer the question.For what values of x is f(x) = 0?

A. -20, -12, 14, 20 B. -12, 14 C. -12 D. -12, 14, 20

Mathematics

Solve the problem.A rectangular board is 2 by 3 units. The foci of an ellipse are located to produce the largest area. A string is connected to the foci and pulled taut by a pencil in order to draw the ellipse. Find the length of the string.

A. 6 B. 4 C. 2 D. 3

Mathematics