Question

Determine
a)
${3}^{2}$
b)
${5}^{3}$
c)
$( - 4)^{ - 2}$
d)
$( - 2) {}^{4}$
e)
$\pi {}^{2}$
f)
$( \frac{3}{2} ) {}^{ - 1}$
g)
$( \frac{2}{5} ) {}^{ - 1}$
h)
$0virgula3 {}^{ - 1}$
i)0,5 elevado a -1
j)
$( - \pi) {}^{ - 3}$
k)
$( \frac{4}{7}) {}^{ - 2}$

Answer 1

a)3²→3.3=9

b)5³→5.5.5=25

c)(-4)-² → 1/ (-4)²→ 1/(-4).(-4)= 1/16

d)(-2)-⁴→ 1/(-2)⁴→ 1/ -2.-2.-2.-2= 1/16

e)π²→ π.π→ 3,14²≈9,86

f)(3/2)-¹→ 1/(3/2)¹→ 1.2/3=2/3

g)1/(2/5)= 5/2

h)0,3-¹→ 1/0,3= 3,33...

I)0,5-¹→ 1/0,5= 2

j)1/(-π)³→ 1/π³

k)1/(4/7)²→ 1/ (16/49)→ 1.49/16= 49/16