Question 1064975
{{{tanx + cotx / secx + cosecx = 1 / sinx + cosx}}}
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{{{tanx + (cosx/sinx)/(1/cosx) + 1/sinx = 1/sinx + cosx}}}
{{{tanx + (cos^2(x)/sinx) + 1/sinx = 1/sinx + cosx}}}
Multiply by sine
{{{tanx*sinx + cos^2(x) + 1 = 1 + cosx*sinx}}}
{{{tanx*sinx + cos^2(x) = cosx*sinx}}}
{{{sin^2(x)/cosx + cos^2(x) = cosx*sinx}}}
Not an identity.