Verify the identity.sec4 x - tan4 x = sec2 x + tan2 x
What will be an ideal response?
sec4 x - tan4 x = (sec2 x + tan2 x)(sec2 x - tan2 x) = (sec2 x + tan2 x)(1) = sec2 x + tan2 x.
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Use the half-angle formulas to simplify the expression.
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A. ?- |cot x| B. ?- |3 tan x| C. ?- |3 tan 6x| D. ?- |3 cot 3x| E. ?- |cot 3x|
Multiply or divide.10 ÷ 
A. -15
B. - 
C. - 
D. -5
Solve the problem.The total individual income tax collected by the tax collecting body of a country is a function of the number of people working, their income, and the tax rates. It has increased each year since 1985. The table below shows the individual income tax collected (in billions) for the time period between 1985 and 2010. Find the average annual rate of change between 1995 and 2005.Individual Income Tax Collected (in billions)
Year
A. $25.3 billion per year B. $37.8 billion per year C. $34.9 billion per year D. $39.8 billion per year
Determine the coefficient and the degree of each term in the polynomial.7x4 + 12x
A. Coefficients: 7, 12 degrees: 4, 0 B. Coefficients: 7, 12 degrees: 5, 1 C. Coefficients: 7, 12, 1 degrees: 4, 1, 0 D. Coefficients: 7, 12 degrees: 4, 1