express each of the following having rational denominator 1/1+root2+root3
Answers
Answered by
1
1/1+sqrt2+sqrt5
=1/1+sqrt5
=1/1+sqrt5×1-sqrt5/1-sqrt5
=1-sqrt5/1^2-(sqrt5)^2
=1-sqrt5/1-5
=1-sqrt5/4
=1/1+sqrt5
=1/1+sqrt5×1-sqrt5/1-sqrt5
=1-sqrt5/1^2-(sqrt5)^2
=1-sqrt5/1-5
=1-sqrt5/4
Similar questions