bpnapkhrl
bpnapkhrl
30-09-2019
Mathematics
contestada
Cotx + tanx=2cosecx
Respuesta :
prajwolbohara12
prajwolbohara12
30-09-2019
Answer:
sinx/cosx+cosx/sinx
sin^2+cos^2/cosx.sinx
1/(2sinx.cosx/2)
2/sin2x
2cosecx
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