Identity 2 + 2cot^2x = 2cotx secx cscx

Kyran Hudson 2020-11-17 Answered
Identity 2+2cot2x=2cotxsecxcscx
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Expert Answer

liannemdh
Answered 2020-11-18 Author has 106 answers
2cot(x)sec(x)csc(x)
=2(cos(x)sin(x))(1cos(x))(1sin(x))
=2cos(x)cos(x)sin(x)sin(x)
=2sin(x)sin(x)
=2sin2(x)
=2csc2(x)
=2(csc2(x))
=2(1+cot2(x))
=2+2cot2(x)
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