Q24 of 51 Page 3

If , then a =

√(13-a√10) =√8 +√5


Squaring both side,..


= 13 – a√10 = 8 + 5 + 2×√8×√5


= 13 – a√10 = 13 + 2√40


= - a√10 = 4√10


= a = -4

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