`( sin 30^(@) + cos 45^(@) - tan 60^(@))/(cot 30^(@) - sin 45^(@) - cos 60^(@))` का मान है

The value of (sin 30^(@) - cos 60^(@) + tan 45^(@))/(cos 90^(@) + tan 45^(@) + sin 90^(@)) is

(sin30^(@)cos45^(@))/(tan 60^(@)) is equal to

frac(sin 30^.cos 45^@)(tan 60^@)

sin^(2) 60^(@) + 2 tan 45^(@) - cos^(2) 30^(@)

Evaluate : (sin 30^(@) + tan45^(@) - cosec 60^(@))/(sec 30^(@) + cos 60^(@) + cot 45^(@))

If A = (sin 45^(@) - sin 30^(@))/(cos 45^(@) + cos 60^(@)) and B = (sec 45^(@) - tan 45^(@))/(cosec 45^(@) + cot 45^(@)) , then which one of the following is correct ?