The square root of (7+3√5)(7-3√5) is: | Answer | TuitionWave

Subject

Quantitative Aptitude

Topic

Fraction & Decimal

The square root of (7+3√5)(7-3√5) is:
Reading

ক)

√5

খ)

4

গ)

2

ঘ)

3√5

Explanation

(7+3√5)(7-3√5) = 7 2 - (3√5) 2 = 49 - 45 = 4 So, the Square root is √4 = 2

What is the square root of 0.16 ?What is the square root of 114921 ?

\sqrt {((42 - 6)(25 + 11))}

?What is the least number by which 2450 must be multiplied in order to get a perfect square ?

\sqrt {\frac{{32.4}}{?}}

= 2 Which will come in place of question mark ?

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