Question

anyone pls say ,this is from class 7th cbse ,algebra ​

Answer 1

Answer:

4)

1/6 answer

Step-by-step explanation:

$\frac{x}{y} + \frac{y}{z} + \frac{z}{x} \\ = \frac{ - 2}{ - 1} + \frac{ - 1}{3} + \frac{3}{ - 2} \\ = \frac{2}{1} - \frac{1}{3} - \frac{3}{2} \\ = \frac{(2 \times 6) - (1 \times 2) - (3 \times 3)}{6} \\ = \frac{12 - 2 - 9}{6} \\ = \frac{12 - 11}{6} \\ = \frac{1}{6}$

Answer 2

Answer:

y

x

+

z

y

+

x

z

=

−1

−2

+

3

−1

+

−2

3

=

1

2

−

3

1

−

2

3

=

6

(2×6)−(1×2)−(3×3)

=

6

12−2−9

=

6

12−11

=

6

1