If `A+B=135^(@) " then " (1+ cot A ) (1+cot B)=`

If A + B = 45^(@), " then " (cot A - 1) ( cot B - 1) is

If, in a Delta ABC , angle C is 45^(@) then : (1 + cot A) (1 + cot B) =

IF A +B = 45 ^@ , then ( cot A -1) ( cot B-1) is equal to

Suppose that A+B =135^(@) and neither A nor B is an intergral multiple of 180^(@) . Then prove that (1 + cot A)(1 + cot B) = 2 and hence deduce that cot67(1^(@))/(2) = sqrt(2)- 1 .

If A+B=225^(circ) then (cot A)/(1+cot A) . (cot B)/(1+cot B)=

If A+B=45^@ then then (cot A- 1) (cot B- 1) is equal to :

If A + B = 45^@ , then (cot A-1) (cot B-1) is equal to......... A) 0 B) 2 C) 1 D) 4

If A+B=45^(@), then (cot A-1)(cot B-1) is equal to