Question

HELP ME GENUS PLEASE HELP... *SOLVE*

Answer 1

As x^1/2 = √x

4×√1/0.81( √0.81+√0.81^3)

4×1/0.9 (0.9+0.729)

4×1.11 (1.629)

4.44 (1.629)

7.232

Hope it helps you ....

Answer 2

$4 \times {0.81}^{ \frac{ - 1}{2} } ( {0.81}^{ \frac{1}{2} } + {0.81}^{ \frac{3}{2} } )$

We know That

x^-a=1/x^a

So,

$4 \times ( \frac{1}{0.81}) {}^{ \frac{1}{2} } (0.81 {}^{ \frac{1}{2} } + 0.81 {}^{ \frac{3}{2} } )$

We know If x^1/a=a√x

$4 \times \sqrt{ \frac{1}{0.81} } ( \sqrt{0.81} + \sqrt{{0.81}^{3}} )$

81=9×9

0.81=0.9×0.9

$4 \times \frac{1}{0.9} (0.9 + 0.729) \\ \\ 4 \times \frac{1}{ \cancel{0.9}} \times \cancel{1.629} \\ \\ 4 \times 1.81 \\ \\ =7.24$

$\boxed{\mathbf{\huge{Answer=7.24}}}$