" (iii) "(-tan theta cot(90^(@)-theta)+sec theta cosec(90^(@)-theta)+sin^(2)35^(@)+sin^(2)55^(@))/(tan10^(@)tan20^(@)tan30^(@)tan70^(@)tan80^(@))

tan theta+tan(90^(@)-theta)=sec theta xx sec(90^(@)-theta)

Evaluate: (sec theta csc(90^(0)-theta)-tan theta cot(90^(0)-theta)+sin^(2)55^(0)+sin^(2)35^(@))/(tan10^(0)tan20^(0)tan60^(@)tan70^(0)tan80^(0))

Without using trigonometric tables, evaluate each of the following: (-tanthetacot(90^0-theta)+secthetacos e c(90^0-theta)+sin^2 35^0+sin^2 55^0)/(tan10^0tan20^0tan30^0tan70^0tan80^0)

Without using trigonometric tables, evaluate each of the following: (-tanthetacot(90^0-theta)+secthetacos e c(90^0-theta)+sin^2 35^0+sin^2 55^0)/(tan10^0tan20^0tan30^0tan70^0tan80^0)

tan theta+(1)/(tan theta)=sec theta cosec theta

tan^(2)(90^(@) - theta) - cosec^(2) theta =

tan^(2)(90^(@) - theta) - cosec^(2) theta =