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Evaluate: (secthetacos e c(90^0-theta)-t...

Evaluate: `(secthetacos e c(90^0-theta)-tanthetacot(90^0-theta)+sin^2 55^0+sin^2 35^0)/(tan10^0tan20^0tan60^0tan70^0tan80^0)`

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`=(secθcsc(90−θ)−tanθcot(90−θ)+sin255+sin235)/( tan10tan20tan60tan70tan80)`
`= ((secθ×secθ)−(tanθ×tanθ)+sin255+cos255)/( tan10*(1/tan 10)tan20*(1/tan 20)tan60`
`=tan60(sec^2θ−tan^2θ)+sin^255+cos^255`
...
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