" 9."(sin30^(@)-sin90^(@)+2cos0)/(tan30^(@)tan60^(@))

Find the value of : " "(sin30^(@)-sin90^(@)+2cos0^(@))/(tan30^(@) times tan60^(@))

Find the value of : (sin30^(@)-sin90^(@)+2cos0^(@))/(tan30^(@) times tan60^(@))

(cos0^(@)+sin90^(@))xx(tan30^(@)xxtan60^(@)) is:

Evaluate each of the following: (sin^2 45^o + cos^2 45^o)/(tan^2 60^o) (ii) (sin30^o-sin90^o + 2cos0^o)/(tan30^otan60^o)

(sin60^(@)+sin30^(@))/(sin60^(@)-sin30^(@))=(tan60^(@)+tan45^(@))/(tan60^(@)-tan45^(@))

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

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

Show that : (i) (1-sin60^(@))/(cos60^(@))=(tan60^(@)-1)/(tan60^(@)+1) (ii) (cos30^(@)+sin60^(@))/(1+sin30^(@)+cos60^(@))=cos30^(@)

Prove (1-sin60^(@))/(cos60^(@))=(1-tan30^(@))/(1+tan30^(@))

Evaluate : (i) sin60^(@)*cos30^(@)-cos60^(@)*sin30^(@) (ii) tan30^(@)*cosec60^(@)+tan60^(@)*sec30^(@) .