(tan(a^(2)+b^(2))/(c))/((16)/(4))phi_(b)bquad bquad (c^(2)+a^(2))/(b)|=4abc

(a^(2)+b^(2))/(c),c,ca,(b^(2)+c^(2))/(a),ab,b,(c^(2)+a^(2))/(2)]|=4abc

show that [[(a^(2)+b^(2))/(c),c,ca,(b^(2)+c^(2))/(a),ab,b,(a^(2)+b^(2))/(c)]]=4abc

In triangle ABC, prove that, tan((B-C)/(2))=(b-c)/(b+c)cot((A)/(2)) tan((C-A)/(2))=(c-a)/(c+a)cot((B)/(2)) tan((A-B)/(2))=(a-b)/(a+b)cot((C)/(2))

In triangle ABC(a^(2)-b^(2)-c^(2))tan A+(a^(2)-b^(2)+c^(2))tan B=

In a ABC, prove the following: (c^(2)-a^(2)+b^(2))tan A=(a^(2)-b^(2)+c^(2))tan B=(b^(2)-c^(2)+a^(2))tan C

In any Delta ABC(i)tan((B-C)/(2))=((b-c)/(b+c))(cot A)/(2)(ii)tan((A-B)/(2))=((a-b)/(a+b))(cot C)/(2)(iii)tan((C-A)/(2))=((c-a)/(c+a))(cot B)/(2)

If cos theta = (a cos phi + b) / (a + b cos phi) then (tan ((theta) / (2))) / (tan ((phi) / (2))) = (A) ( ab) / (a + b) (B) (a + b) / (ab) (C) sqrt ((a + b) / (ab)) (D) sqrt ((ab) / (a + b))

Prove that 2b^(2)c^(2) +2c^(2)a^(2) +2a^(2)b^(2) -a^(4)-b^(4)-c^(4)= (a+b+c) (b+c-a) (c+a-b) (a+b-c)

tan(a-B)=(a)/(b),tan(B-C)=(b)/(c) and tan(C-A)=(c)/(a) then a^(2)c+b^(2)a+c^(2)b=

In tringle ABC (a^(2)-b^(2)-c^(2))tan A+(a^(2)-b^(2)+c^(2))tan B=