the square root of 1+\[1/(\sqrt{2}+1) +1/(\sqrt{3} +\sqrt{2}) + 1/(\sqrt{4} +\sqrt{3}) +............... 1/(\sqrt{324} +\sqrt{323}) is\]
options are 3root2 1/root2 2root3
the answer is 3root2
do you mean square root of this whole term written in long?
yes we have to find the square root
i think there is some trick.........
yes it is i am giving u the hints.. rationalize the each terms..!
the square root of 1+\[1/(\sqrt{2}+1) +1/(\sqrt{3} +\sqrt{2}) + 1/(\sqrt{4} +\sqrt{3}) +............... 1/(\sqrt{324} +\sqrt{323}) is\]
this is the question plzzz look at it
he square root of 1+ 1/(2√+1)+1/(3√+2√)+1/(4√+3√)+...............1/(324−−−√+323−−−√)is
dont forgot to add that 1
do you know what a conjugate of a number is?
\[\frac{1}{a+b}*\frac{a-b}{a-b}=\frac{a-b}{a^2-b^2}\]
rationalizing the terms in denomiantor of each terms u will get 1.. & in numerator the terms like this.. \[\sqrt{2}-1+\sqrt{3}-\sqrt{2}+.........................\sqrt{324}-\sqrt{323}\] so each terms get cancelled and we are left with \[\sqrt{324}\]
that called a telescoping sum right ?
take the square root of sqrt(324) that is square root of 324 which is 3root2
oh thanzzzz u really is a worth for me 1000000 thanzzzz
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