In `/_\ABC, /_C=90^@, /_B=30^@`, then `2(sinA+sinB)=?`

Statement I: If sinA=sinB , cosA=cosB then A= 2np + B Statement II :If A+B+C=90^@ then sin2A+sin2B + sin2C = 4 sinA sinB sinC Which of the above statements is correct?

In a DeltaABC , if a = 18, b = 24, c = 30, find (i) sinA, sinB, sinC (ii) cosA, cosB, cosC

If A+B+C = pi and A, B, C are angle of /_\ ; then show sinA + sinB + sinC < (3 sqrt(3))/2 .

In triangle ABC , if AB=2,BC=4 and AC=5, then the value of (sinA-sinB)/(sinC) is equal to

In any triangle ABC, if a=" "18 , b=" "24 , c=" "30 , find sinA, sinB, sinC

In a triangle ABC , prove that ,(sinA+sinB)/2lt=sin((A+B)/2)

In DeltaABC , prove that: a) (sin2A + sin2B + sin2C)/(sinA+sinB+sinC) = 8sinA/2 sinB/2sinC/2

If sinA+sinB=C,&cosA+cosB=D , then sin(A+B)=?

In ABC,quad if quad a=18,b=24 and C=30 and /_C=90^(@) find s in A,s in B and s in C .

In triangle ABC,/_C=90^(@) then (a^(2)-b^(2))/(a^(2)+b^(2))=