Which of the following is an identity?
A: secBcotB = cosB
B: secBcotB = cscB
C: secBcot...
Mathematics, 20.07.2020 20:01 90317641
Which of the following is an identity?
A: secBcotB = cosB
B: secBcotB = cscB
C: secBcotB = sinB
D: secBcotB = cscBtanB
Answers: 2
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