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sweet-ann [11.9K]
3 years ago
10

Cotx-1/ cotx+1 = 1-tanx/1+tanx

Mathematics
1 answer:
ziro4ka [17]3 years ago
7 0
Sinxcosx−1sinxcosx+1=1−cosxsinx1+cosxsinx

sinx−cosxcosxsinx+cosxcosx=sinx−cosxsinxsinx+cosxsinx

sinx−cosxcosx⋅cosxsinx+cosx=sinx−cosxsinx⋅sinxsinx+cosx

sinx−cosxsinx+cosx=sinx−cosxsinx+cosx
hence, proved


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