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x/y=4/5. 4x/y= _ 4x+y/4x-y=_ (using componendo div 5 id

By Cora

x/y=4/5. 4x/y= _ 4x+y/4x-y=_ (using componendo div 5 idendo) :.4x+y/4x+y=_ :.4x+y/4x-y=11/21 (by invertendo)​

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Cora

two sides of a triangle are 6 cm and 8 cm . The perimeter of the triangle is 36 cm . What is it’s third side​

A(3×2 + 4x – 5) by (4×2 – 7x + 2)
B (6×3 – 5×2 + 4x + 1) by (32 + 7x – 1)
C (3×5 – 7×3 + 2×2 – 3 + 4) by (x3 – 2×2 + 3x

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