GROWTH DEVELOPMENT CHILD
SUMMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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multiply
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divide
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subtract
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add
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Detailed explanation-1: -Answer: to rationalize denominator, you have to multiply the numerator by a number such that the resulting radicand in the denominator is a perfect nth power. √3/2 = √3/√2, express as quotient of two radicals.
Detailed explanation-2: -How to rationalise the denominator with square root? Answer: To rationalise the denominator with square root, multiply and divide the given fraction with the same square root value. This way, the denominator will be a rational number.
Detailed explanation-3: -When we have a fraction with a root in the denominator, like 1/√2, it’s often desirable to manipulate it so the denominator doesn’t have roots. To do that, we can multiply both the numerator and the denominator by the same root, that will get rid of the root in the denominator.
Detailed explanation-4: -To rationalize the denominator means to eliminate any radical expressions in the denominator such as square roots and cube roots. The key idea is to multiply the original fraction by an appropriate value, such that after simplification, the denominator no longer contains radicals.