root11+1/root11-1=a-b root11
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A and C are given.
To find AC, fill in the boxes given below.
A ABC is a right angled triangle.
According to Pythagoras theorem,
(AB) + (BC)2 = 90”
We will find co-ordinates of point B
to find the lengths AB and BC,
CB || X-axis .. y co-ordinate of B = 2
1 2 3
-3 -2 -1 0
-1
-21
-3:
Fig. 5.6
BA || Y-axis . x co-ordinate of B = 2
AB =
3
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