a=2+under root3. find the value of a-1÷a
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2+ root 3-1÷2+ root 3
we know,root 3=1.732
so,2+1.732-1÷ 2+1.732=2.732÷3.732=2732÷3732=0.732
OR
if a=2+ root 3
so,1/a=2-root 3
so,a-1/a=2+root3-2+root3=2root3
hope,it helps........
plz mark as brainliest....
we know,root 3=1.732
so,2+1.732-1÷ 2+1.732=2.732÷3.732=2732÷3732=0.732
OR
if a=2+ root 3
so,1/a=2-root 3
so,a-1/a=2+root3-2+root3=2root3
hope,it helps........
plz mark as brainliest....
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