If `4sinA=4sin B = 3sin C` in a `triangleABC`, then `cosA` is equal to

If sinA+ sin B + sinC=(3sqrt(3))/2 , then: triangleABC , is

If in a triangle ABC ,(sin A+sin B +sin C)(sinA+sinB-sin C)=3sinAsinB then angle C is equal to

In a triangleABC , if |[1,1,1][1+sinA,1+sinB,1+sinC],[sinA+sin^2A, sinB+sin^2B, sinC+sin^2C]|=0 , then prove that triangleABC is an isosceles triangle.

If A lies in the third quadrant and 3 tan A-4 = 0, then 5 sin 2A + 3sinA + 4 cosA is equal to

if sinA +sinB=C and cosA+cosB=D and C , D!=0 then the value of sin(A+B) is equal to

In a triangleABC if the sides are a =3, b = 5 and c = 4then sin(B/2) + cos(B/2) is equal to

In a triangleABC , if |(1,1,1),(1+sinA,1+sinB,1+sinC),(sinA+sin^2A,sinB+sin^2B,sinC+sin^2C)|=0 , then prove that triangleABC is an isosceles triangle.

In a triangleABC , if |(1,1,1),(1+sinA,1+sinB,1+sinC),(sinA+sin^2A,sinB+sin^2B,sinC+sin^2C)|=0 , then prove that triangleABC is an isosceles triangle.

If A lies in the third quadrant and 3 tan A-4 = 0, then 5 sin 2A + 3sinA + 4 cosA is equal to ........... A) 0 B) (-24)/(5) C) (24)/(5) D) (48)/(5)