We can ise Pythagorean triplet which is ( 12 , 16 , 20 )
Therefore the answer is 16.
Step-by-step explanation:
Or we can use Pythagoras theorem , stated as ;
( hyp )^2 = ( adj )^2 + ( opp )^2
hyp ( hypotenuse ) = 20
We can assume the adj ( adjacent ) = 12
By substituting the values ,
20^2 = 12^2 + ( adj )^2
400 = 144 + ( adj )^2
400 - 144 = ( adj )^2
256 = ( adj )^2
Take the square root of both sides
✓256 = adj
16 = adj
Therefore the length of the other leg which is the adjacent( adj ) side is 16.
-1/3
3
-7
Is
Two have the product of -1
Answer:
(a) The graphic representation is in the attached figure.
(b)
.
(c)
.
Step-by-step explanation:
(a) Given a complex number
we know, from Euler's formula that
. So, it is not difficult to notice that

so it is on the unit circumference. Also, notice that the Cartesian representation of the complex number is
.
Now,
.
Notice that
has the same modulus that
, so it is on the unit circumference. Beside, its Cartesian representation is
.
So, the points
and
are symmetric with respect to the X-axis. All this can be checked in the attached figure.
(b) Notice that

Then,
.
(c) Notice that

Then,
.
Answer:
9/14
Step-by-step explanation:
81/126=9x9/9x14=9/14