Question

if X=4, Y=3, Z= -2
then X^2 + Y^2 - Z^2 / XY + YZ - ZX

Answer 1

$\bold {\huge{Ello!!}}$

$<b > Here's your answer$

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Given ,

x = 4

y = 3

z = - 2

To find the value of : x² + y² - z² / ( xy + yz - zx )

Now , putting the values ↓

x² + y² - z² / ( xy + yz - zx )

= ( 4 )² + ( 3 )² - ( - 2 )² / { 4 × 3 + 3 × ( - 2 ) - ( - 2 ) × 4 }

= ( 16 + 9 - 4 ) / { 12 - 6 + 8 }

= 21 / 14 [ ★ Required answer ]

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$<b><u><marquee direction> Hope it helps !!$