Establish the identity.(tan v + 1)2 + (tan v - 1)2 = 2 sec2v
What will be an ideal response?
(tan v + 1)2 + (tan v - 1)2 = tan2v + 2 tan v + 1 + tan2v - 2 tan v + 1 = 2(tan2v + 1) = 2 sec2v
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Using a sum or difference identity, write the following as an expression involving functions of x.sin (360° + x)
A. sin x
B. -cos x
C. 
cos x + 
sin x
D. 
cos x - 
sin x
Find the reciprocal, if it exists.- 
A. 1
B. 
C. - 
D. 
Refer to this figure to answer the question. Assume 
and 
are parallel.
Is ?ADC a right angle?
A. No B. Yes
Solve the problem.The long jump record, in feet, at a particular school can be modeled by 
where x is the number of years since records began to be kept at the school. What is the record for the long jump 
after record started being kept? Round your answer to the nearest tenth.
A. 25.3 ft B. 25.5 ft C. 25.0 ft D. 22.4 ft