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(tan160^(@)-tan110^(@))/(1+tan160^(@)*ta...

(tan160^(@)-tan110^(@))/(1+tan160^(@)*tan110)

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If tan20^(@) = lambda then show that (tan 160^(@) -tan 110^(@))/(1+tan160^(@).tan110^(@)) = (1-lambda^2)/(2lambda) .

If tan 20^@ =p , " then " (tan 160^@ - tan 110^(@))/(1+ tan 160^(@) tan 110^(@))=

If tan 20^(@) =lamda, then (tan 160^(@) -tan 110^(@))/(1+ (tan 160^(@)) (tan 110^(@)))=

If tan 20^(@) =lamda, then (tan 160^(@) -tan 110^(@))/(1+ (tan 160^(@)) (tan 110^(@)))= ............. A) (1+ lamda ^(2))/(2 lamda) B) (1+ lamda^(2))/( lamda) C) (1- lamda^(2))/(lamda) D) (1- lamda^(2))/(lamda)

If : p = cot 20^(@),"then": (tan 160^(@) - tan 110^(@))/(1 +tan 160^(@) * tan 110^(@))= A) (p^(2)-1)/(2p) B) (p^(2)+1)/(2p) C) (1-p^(2))/(2p) D) (2p)/(1 + p^(2))

Evaluate (tan60^(@)-tan30^(@))/(1+tan60^(@)tan30^(@)) .

Evaluate (tan60^(@)-tan30^(@))/(1+tan60^(@)tan30^(@)) .

IF tan 20^@ = p , then (tan 160^@ - tan 110^@ )/( 1+ tan 160^@ tan 110^@ )=