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10 questions
sin2x −1=?
−cos2x
cos2x
cos2x−1
1−cos2x
tan2x =?
sec2x−1
sec2x+1
1−sec2x
Which of the following is not a Pythagorean Identity?
cot2x+1=csc2x
cot2x−csc2x=−1
csc2x+1=cot2x
csc2x−cot2x=1
1−cos2x=?
sin2x
tan2x
cot2x
csc2x
csc2x=?
1+cot2x
1−cot2x
cot2x−1
1−sin2x=?
tan2x
cos2x
cot2x
csc2x
(cosx)(sinx)=?
cscx
secx
cotx
tanx
Which of the following is NOT a Pythagorean Identity?
tan2x+1=sec2x
cos2x=cos2x−sin2x
sin2x+cos2x=1
1+cot2x=csc2x
cos2x+sin2x=?
1
csc2x+sec2x
sin2x
1−sin2x
Rewrite tan(x) in terms of sin(x) and cos(x)
tan(x) = cos(x) / sin(x)
tan(x) = 1 / cot(x)
tan(x) = sin(x) / cos(x)
tan(x) = opp / adj
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