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OAN, OMB, APB and MPN are straight lines and AN = 20A.
M is the midpoint of OB.
OB = b
OA = a
AP = KAB where k is a scalar quantity.
Express AB and MN in terms of a and b.
Express MP in terms of a, b and k.
Finally, find the value of k.
A
![OAN OMB APB And MPN Are Straight Lines And AN 20A M Is The Midpoint Of OB OB B OA A AP KAB Where K Is A Scalar Quantity Express AB And MN In Terms Of A And B Ex class=](https://us-static.z-dn.net/files/dee/bafe5f6dcaa54ed1f62b0bd01bbf0c39.png)