cot(45^(@)+theta)cot(45^(@)-theta)=

Prove that: cot theta+cot(60^(@)+theta)+cot(120^(@)+theta)=3cot3 theta

(tan(45^(@)+alpha)-tan(45^(@)-alpha))/(cot(45^(@)+alpha)-cot(45^(@)-alpha))=

1/(1+cot^2(45^@+theta))-1/(sec^2(45^@-theta))=

Evaluate : (cos^(2)(45^(@) + theta)+ cos^(2) (45^(@) -theta))/(tan(60^(@) + theta) xx tan(30^(@) - theta))+(cot30^(@) + sin 90^(@))xx (tan60^(@) -sec0^(@))

Evaluate : (cos^(2)(45^(@) + theta)+ cos^(2) (45^(@) -theta))/(tan(60^(@) + theta) xx tan(30^(@) - theta))+(cot30^(@) + sin 90^(@))xx (tan60^(@) -sec0^(@))

Prove that cot theta + cot (60^(@) theta) + cot (120^(@) + theta) = 3 cot 3 theta .

If cosec^(6) theta - cot^(6) theta = a cot^(4) theta + b cot^(2) theta + c then a+b+c=

If cot theta = 8//15 and theta does not lie in the first quadrant , then cos (30^(@) + theta ) + sin (45^(@) - theta ) + cos(120^(@) + theta ) =

If cot^(2) theta= cot (theta-alpha) cot( theta- beta) , prove that cot alpha+ cot beta=2 cot 2 theta

If : cot theta + cot((pi)/4 + theta) = 2 , then : theta =