All integers are ___________ numbers.
Even
Rational
Irrational
Odd
2:
1/2 is a ___________ number.
Recurring
Irrational
Rational
Natural
3:
If a ∈ R and m,n are N, then am .an = ______________.
am/n
am-n
am+n
amn
4:
(a3c) (a2b2) = ________________.
a2c2
a3b3c
a5b2c
a2cb2
5:
x0/40 = ________________.
¼
1
x/3
0
6:
(-x)4 . (-x)8 = _____________.
-x12
x32
x4
x12
7:
(3/2)-2 = ______________.
4/9
9/4
32/22
2/3
8:
(x9)4/3= ______________.
x12
x36
x27
x13
9:
If z1 = 6+8i and z2 = 5 then z1+ z2 = _____________.
11+8i
6+13i
14+5i
12+5i
10:
(i2)4 = ___________.
-1
i2
1
i
11:
√6.√-6=.............
-6
-6i
6i
-6i2
12:
The additive inverse of 5/4 is __________.
4/5
5/4
-5/4
1
13:
(8+3i) – (4-7i) = ______________.
4-3i
4+10i
12-10i
4-10i
14:
(4√x)1/3=.............
x4/3
x1/2
x1/7
x1/12
15:
( x8/y6)3/2 = ___________.
X12/y9
y9/x12
x8/y3
x24
16:
(c2d5) (c/d2) = ___________.
c3d5
c2d4
c3d3
c/d
17:
Convert (x)4/5 into radical form ____________.
4√x
5√x
5√x4
4√x5
18:
a2-2ab+b2 = ____________.
a-b
(a+b)2
(a-b)2
a2-b2
19:
If y+1/y = 5 then y2+1/y2 = ___________.
25
23
-23
27
20:
(a+b) (a-b) = ___________.
(a-b)2
a-b
a2 –b2
a2 +b2
21:
a3-b3-3ab(a-b) = ____________.
a3+b3
(a+b)3
(a-b)3
a3-b3
22:
x2y3+5x2y3-7x2y3 = ___________.
x2y3
- x2y3
13 x2y3
-13 x2y3
23:
The complex conjugate of 7-8i __________________.
7+8i
7-8i
8i-7
-7+8i
24:
-23i+4i+7i = ____________.
12i
-12i
12i2
-12i3
25:
(x4y2)(x2y3) = _______________.
x6y3
x6y5
x6y
x2y
26:
(a+b) (a2-ab+b2) = ______________.
a3-b3
a3+b3
(a+b)3
(a-b)3
27:
(a+b)(a+b) = _____________.
a2+b2
a2-b2
(a+b)2
(a-b)2
28:
If x+y = 4, x2 +y2 =8 then xy = _____________.
-4
4
12
20
29:
(x+8)(x-5)= __________.
x2 +8x-40
x2 -8x+40
x2 +3x-40
x2 +10x+30
30:
If a+b = 4, ab= 3 then a-b = ____________.
4
2
6
answer me as soon as possible with step wise explanation
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Answer:
1--rational
2-rational
4-&a5b2c
5--0
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