Prove the identity.ln |sec2? - tan2?| = 0
What will be an ideal response?
ln |sec2 ? - tan2 ?| = ln |(1 + tan2?) - tan2 ?| = ln 1 = 0.
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Multiply. Change any mixed number to an improper fraction before multiplying.4
A. 3
B. 12
C. 7
D. 12
Use the prime factorization method to find the LCM of the variable expressions.2xy2 and x3y
A. 5x3y2 B. 4x2y3 C. 2x3y2 D. 4x3y2
Given the set sketched on the number line, identify the type of interval (open, closed, half-open, open infinite, closed infinite), write the set using set-builder notation, and write the set using interval notation.
A. open infinite interval; {x|x < -9}; (-?, -9) B. closed infinite interval; {x|x ? -9}; (-?, -9] C. closed infinite interval; {x|x ? -9}; [-9, ?) D. open infinite interval; {x|x > -9}; (-9, ?)
Find the exact value of y, or state that y is undefined.y = cos-1 
A. 
B. - 
C. 
D. 