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Mathematics, 13.08.2020 01:01 restinpeicejahseh
20. Which of the following is not an identity?
a) sin2 a+cos2 a = 1
b) sin a = tan a * cos a
c) 1 + cot2 a = csc2 a
d) 1 - sec2 a = tan2 a
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Answers: 1
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You know the right answer?
20. Which of the following is not an identity?
a) sin2 a+cos2 a = 1
b) sin a = tan a * cos a<...
b) sin a = tan a * cos a<...
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