In a triangle ABC, let `a=6,b=3` and `cos(A-B) =4/5` [Note: All symbols used have usual meaning in a triangle.] .Statement 1: `angleB=pi/2` Statement 2: `sin A = 2/sqrt5`

In a triangle ABC, if a=4, b=8 and angleC=60^(@) , then : (where symbols used have usual meanings)

In a triangle ABC, if a=4, b=8 and angleC=60^(@) , then : (where symbols used have usual meanings)

In a triangle ABC, if a=13,b=14 and c=15, then angle A is equal to (All symbols used have their usual meaning in a triangle.)

In a triangle ABC, a^3 + b^3 + c^3 = c^2 (a + b + c) (All symbol used have usual meaning in a triangle.) Statement-1: The value of /_C=60^@. Statement-2: Delta ABC must be equilateral.

In a triangle ABC, a^3 + b^3 + c^3 = c^2 (a + b + c) (All symbol used have usual meaning in a triangle.) Statement-1: The value of /_C=60^@ . Statement-2: Delta ABC must be equilateral.

In a triangle ABC, a^3 + b^3 + c^3 = c^2 (a + b + c) (All symbol used have usual meaning in a triangle.) Statement-1: The value of /_C=60^@ . Statement-2: Delta ABC must be equilateral.

In a DeltaABC, if a=13, b=14and c=15, then angle A is equal to (All symbols used have their usual meaning in a triangle.)

In a DeltaABC, if a=13, b=14and c=15, then angle A is equal to (All symbols used have their usual meaning in a triangle.)

In a DeltaABC, if a=13, b=14and c=15, then angle A is equal to (All symbols used have their usual meaning in a triangle.)

In a triangle ABC, if b=(sqrt(3)-1)a and /_C=30^(@), then the value of (A-B) is equal to(All symbols used have usual meaning in a triangle..