show that x^{-1} + y^{-1} / x^{-1} +x^{-1} - y^{-1} / y^{-1 }=x^{2}+y^{2}/xy

what is the formula of (a+b+c) whole cube

abc is a triangle with angle b = 2(angle c). d is a point on bc such that ad bisects angle bac and ab = cd.Prove angle bac = 72 degree

can any1 tell a+b+ c whole CUBE

IN TRIANGLE PQR IF ANGLE R IS GREATER THAN ANGLE Q THEN THE RIGHT ANSWER IS

1)QR IS GREATER THAN PR

2)PQ IS GREATER THAN PR

3)PR IS GREATER THAN PQ

OR 4)PR IS GREATER THAN QR

show that x

^{-1}+ y^{-1}/ x^{-1}+x^{-1}- y^{-1}/ y^{-1 }=x^{2}+y^{2}/xywhat is the formula of (a+b+c) whole cube

In the given figure,if AB parallelto CD, CD parallel to EF, find the value of (y-x):(y+x)abc is a triangle with angle b = 2(angle c). d is a point on bc such that ad bisects angle bac and ab = cd.Prove angle bac = 72 degree

can any1 tell a+b+ c whole CUBE

(i) <A : <B= 1:3

(ii) <AED=<BCE

IN TRIANGLE PQR IF ANGLE R IS GREATER THAN ANGLE Q THEN THE RIGHT ANSWER IS

1)QR IS GREATER THAN PR

2)PQ IS GREATER THAN PR

3)PR IS GREATER THAN PQ

OR 4)PR IS GREATER THAN QR

(a) ΔPTR â‰Œ ΔRMP (b) RT || PM and RT = RM