Question

 If X-Y-Z and l(XZ) =5√7, l(XY) = √7 , then l(YZ) =? *
a 6√7
b 4√7
c 35
d -4√7​

Answer 1

Step-by-step explanation:

Step-by-step explanation:

I(XZ)-I(XY)+1(YZ)

3√7=√7+1(YZ)

I(YZ)=3√7-√7

= -√7(3-1)

=√7(2)

I(YZ)=2√7