In a `DeltaABC` ,with usual notations,`(a)/(3)=(b)/(4)=(c)/(5)` then triangle is

In a Delta ABC with usual notations, if (a)/(cos A)=(b)/(cos B)=(c )/(cos C) , then the triangle is :

In DeltaABC , with usual notations, if cosA=(sinB)/(sinC) , then the triangle is

In DeltaABC , with the usual notations, if sinB sinC=(bc)/(a^(2)) , then the triangle is

In DeltaABC , with the usual notations, if ("tan"(A)/(2))("tan"(B)/(2))=(3)/(4) then a+b= . . .

In Delta ABC with usual notation (r_(1))/(bc)+(r_(2))/(ca)+(r_(3))/(ab) is

In Delta ABC with usual notation, (c-b cos A)/(a) is equal to

In any DeltaABC under usual notation, a(bcosC-c cosB) =

Angles A, BandC ofa triangle ABC in A.P. with the usual notations if (b)/(c)=(sqrt(3))/(sqrt(2)) then angle A is equal to (pi)/(6)2*(pi)/(4)3.(pi)/(3) 4.(pi)/(2)5.(5 pi)/(12)

In Delta ABC with usual notation (r_(1))/(bc)+(r_(2))/(ac)+(r_(3))/(ab) is:

In DeltaABC with usual notation, (c-b cos A)/(a) is equal to