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A+B=225^(@)((1+cot A)(1+cot B))/(cot A c...

A+B=225^(@)((1+cot A)(1+cot B))/(cot A cot B)=

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A+B=225^(@)rArr((1+cot A)(1+cot B))/(cot A cot B)=

cot(A-B)=(cot A cot B+1)/(cot A-cot B)

A+B=135^(@)rArr(1+cot A)(1+cot B)=

A+B=135^(@)rArr(1+cot A)(1+cot B)=

Prove that cot (A + B) = (cot A cot B - 1)/(cot A + cot B)

If A+B=225^(@) Find cot A/(1+cot A)^(*)cot B(1+cot B)'

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

a cot A+b cot B+c cot C=

(tan A + tan B)/( cot A + cot B)+(1- tan A tan B)/( 1- cot A cot B)=

ln Delta ABC,(cot B+cot C)(cot C-cot A)(cot A+cot B)=