Sin x + cosec x =2 then cot x=?
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sinx+1/sinx=2
sin^2x+1/sinx=2
sin^2x-2sinx+1=0
(sinx-1)^2=0
sinx-1=0
sinx=1
X=π/2
cotx=cotπ/2=0
sin^2x+1/sinx=2
sin^2x-2sinx+1=0
(sinx-1)^2=0
sinx-1=0
sinx=1
X=π/2
cotx=cotπ/2=0
vyshu35:
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okkk
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