Question

please help in this question no. 15 (i) ; (ii)​

Answer 1

Step-by-step explanation:

1) 1/2√4862.√27/2

1/2(69.7280).(3.6742)

1/2(256.197)

128.0985

2)8^2/3-√9×10^0+(1/144)^(-1/2)

8^(2/3)=4

√9=3

10^0=1

(1/144)^(-1/2)= 1/√144= 1/12

therefore

4-3×1+1/12

=13/12

=1.0833

Answer 2

ANSWERS :- (i) √(65637)/2

(ii) 13

$(i) \: \frac{1}{2 } \times \sqrt{4862} \times \frac{ \sqrt{27} }{ \sqrt{2} } \: \: \: = \: \: \: \: \frac{ \sqrt{65637} }{2}$

$\: (ii) \: {8}^{ \frac{2}{3} } - \sqrt{9} \times {10}^{0} + \frac{1}{144} {}^{ ( \frac{ - 1}{2}) }$

$\implies \: 4 - 3 + ( \sqrt{ \frac{144}{1} })$

$\implies \: 1 + 12$

$\implies \: 13$