Establish the identity.sec 4 x - tan 4 x = sec 2 x + tan 2 x
What will be an ideal response?
sec 4 x - tan 4 x = (sec 2 x + tan 2 x)(sec 2 x - tan 2 x) = (sec 2 x + tan 2 x)(1) = sec 2 x + tan 2 x.
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Solve the problem.Ron can mow the lawn in two hours more time than Paul. Working together they can mow the lawn in 5 hours. How long does it take each of them working alone?
A. Paul: 9.1 hr Ron: 11.1 hr B. Paul: 8.3 hr Ron: 10.3 hr C. Paul: 10 hr Ron: 12 hr D. Paul: 8 hr Ron: 10 hr
Find the common difference,d, of the given arithmetic sequence.- 
, - 
, - 
, - 
, ...
A. -4 B. - 2 C. 5
Find all values of ? with the given trigonometric function value.cos ? = - 
A. 60° + n ? 360°; 300° + n ? 360°, n any integer B. 60° + n ? 360°; 120° + n ? 360°, n any integer C. 150° + n ? 360°; 210° + n ? 360°, n any integer D. 210° + n ? 360°; 330° + n ? 360°, n any integer
Find the amount of the ordinary annuity rounded to the nearest cent.
A. $292,955.69 B. $281,532.68 C. $772,955.67 D. $71,261.77