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Let a(1),a(2),a(3),...,...,a(49),a(50) a...

Let `a_(1),a_(2),a_(3),...,...,a_(49),a_(50)` are in airthmetic progression. If `a_(1)=4` and `a_(50)=144` ,then the value of ,`(1)/(sqrt(a_(1))+sqrt(a_(2)))+(1)/(sqrt(a_(2))+sqrt(a_(3)))+(1)/(sqrt(a_(3))+sqrt(a_(4)))cdots+(1)/(sqrt(a_(49))+sqrt(a_(50)))` is equal to

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