Question

answer this 3rd questions

Answer 1

I think it is (c)
I got 87% on resonance exam

Answer 2

Answer:

19/10

Step-by-step explanation:

(a/ b+c) + (b/c+a) + c/ b+ a = ?

Add 3 and subtract 3 in a equation

(a/ b+c) + 1 + (b/c+a) + 1 + c/ b+ a + 1 - 3

(a + b + c) /(b + c) +( b + c + a)/(c + a) + (c + b + a)/ (b + a) - 3

Take common,

= (a + b + c) ( 1/b+c + 1/ c+a + 1/ b+a) - 3...............i

Value of a + b + c = 7

1/b+c + 1/ c+a + 1/ b+a = 7/10

Put on i

= 7 * (7/10) - 3

= 49/10 - 3

= 49 - 30/10

= 19/10