book Maths Puzzle Numerical Ability

Reduce fraction to its lowest term

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book Other Question

Lines MN and AB intersect at Q. Also, MN is perpendicular to AB. Find the measures of angle MQA, angle NQA, angle MQB, and angle NQB.
This is exactly how the question is asked and there is no diagram given.
My question says to simplify the radicals.

(square root of 6- square root of 5)( square root of 6+ square root of 5)

Could you help me? thanks!