(ivy 2 tan 30 1- tan 30° बराबर है: (A) cos 60° (B) sin 60° (C) al

(2 tan 30^(@))/( 1-tan ^(2) 30^(@)) = (a) cos 60 (b) sin 60 (c) tan 60 (d) sin 30

(2tan30^@)/(1-tan^2 30^@) is equal to (a) cos60^@ (b) sin60^@ (c) tan60^@ (d) sin30^@

(2tan30o)/(1-tan^2 30o) is equal to cos60o (b) sin60o (c) tan60o (d) sin30o

(tan 60^(@) - tan 30^(@))/(1 + tan 60^(@) tan 30^(@)) equal

Choose the correct option and justify your choice : (i) (2tan30^@)/(1+tan^2 30^@) (a)\ sin 60^@ (b)\ cos 60^@ (c)\ t a n 60^@ (d)\ sin 30^@

If x tan 30^(@) = (sin 30^(@) + cos 60^(@))/( tan 60^(@) + sin 60^(@)) , then the value of x is :

Show that: 2(cos^2 45°+tan^2 60°)-6(sin^2 45°-tan^2 30°)=6 (ii) 2(cos^4 60°+sin^4 30°)-(tan^2 60°+cot^2 45°)+3sec^2 30°=1/4

Calculate : (tan60^(@)-tan30^(@))/(1+tan60^(@) tan30^(@))+cos60^(@) cos30^(@)+sin60^(@) sin 30^(@) .

Find the value of: (tan 60^@- tan 30^@)/(1+ tan60^@ tan 30^@)+cos 60^@ cos30^@+ sin 60^@ sin30^@ .