Lesson on Rationalization of surds
Answer Text: Rationalization of Surds-To rationalize a surd is to make a surd become a rational number. This is achieved by multiplying the surd by its conjugate.- The conjugate of #sqrt a# is #sqrt a# while the conjugate of #sqrt b# is #sqrt b # .-For the complex surds, we change the sign between the surds. e.g the conjugate of #sqrt a + sqrt b# is #sqrt a - sqrt b# and vice versa.Example 1. Rationalize the following surds. a).#sqrt 5# b). # sqrt 3#
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