" 3.If "A+B=45^(@)," show that "(cot A-1)(cot B-1)=2

If A+B=(pi)/(4), show that (cot A-1)(cot B-1)=2

If A + B= pi/4 , show that (cot A-1) (cot B-1) =2

1. If A+B=(pi)/(4), show that (cot A-1)(cot B-1)=2

If A+B=45^(circ) , prove that (cot A-1)(cot B-1) = 2

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

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

If A + B = (pi)/(4) , show that (cot A - 1) (cot B - 1) = 2 and hence deduce that cot 22^((1^(0))/(2))=sqrt(2)+1.

If A + B = 225^(@),"show that",(cotA)/(1 + cot A).(cot B)/(1 + cot B) =1/2.