Which of the following is an identity?
a. csc^2 x + cot^2 x = 1
b. (cscx + cotx)^2 = 1<...
Mathematics, 20.09.2019 06:00 ray2220
Which of the following is an identity?
a. csc^2 x + cot^2 x = 1
b. (cscx + cotx)^2 = 1
c. sec^2 x sec^2 x + 1 = tan^2 x csc^2 x
d. sin^2 x - cos^2 x = 1
Answers: 2
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