Verify the identity. =

What will be an ideal response?

= = = .

Mathematics

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Solve the problem.Does the graph of the function y = tan x - x have any horizontal tangents in the interval If so, where?

A. No
B. Yes, at x = 0, x = ?, x = 2?
C. Yes, at x = , x =
D. Yes, at x = ?

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Mathematics

Combine and simplify, if possible.-5 - 3y

A. (-5x² - 5y²) or -5(x² - y²)
B. (-45x² - 45y²) or -45(x² - y²)
C. (-15x² - 15y²) or -15(x² - y²)
D. (-15x² - 15y²) or -15(x² - y²)

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Mathematics

Solve the equation.ex + e-x = 7

A. 1.9657, -1.9657 B. 1.9248, -1.9248 C. 1.9194, -1.6962 D. 1.5194, -2.3303

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Mathematics

Solve the problem.Use the formula L = 10 ? log , where the loudness of a sound in decibels is determined by I, the number of watts per square meter produced by the sound wave, and What is the intensity of a noise measured at 56 db?

A. 3.98 × 10-6 watts per square meter B. 5.6 × 10-10 watts per square meter C. 3.98 × 10-7 watts per square meter D. 2.7 × 1014 watts per square meter

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Mathematics