1 point 9) What is the order of the surd 5/10. * O A) 2 O B) 8 O C) 5
Answers
Answer:
c) 5 is the correct answer.
Answer:
(ii) A surd with index of root 3 is called a third order surd or cubic surd.
If x is a positive integer with nth root, then is a surd of nth order when the value of is irrational. In expression n is the order of surd and x is called as radicand. For example is surd of order 3.
The surds which have the indices of cube roots are called as third order surds or cubic surds. For example 2, 3, 10, 17, 3x are the surds of order 3 or cubic surds.
Example: 2, 5, 7, 15, 100, a, m, x, (x - 1) are third order surd or cubic surd (since the indices of roots are 3).
(iii) A surd with index of root 4 is called a fourth order surd.
The surds which have the indices of four roots are called as forth order surds or bi-quadratic surds.
For example 2, 4, 19, 20, x are the surds of
order 4.
Example: 2, 3, 9, 17, 70, a, m, xx-1 are third order surd or cubic surd