Help
Contact
For teachers and institutes
Search courses, problems, tests…
A
A
>_
StemPy Lab
Courses ▾
Problems ▾
Practice ▾
Mock Tests
Classes
Community ▾
A
A
Which expression has the value -6? | StemPy Lab
Quizzes
/
Which expression has the value -6?
Mathematics
Medium
High School (11–12)
Algebra › Complex Numbers
A-Level
Board Exam
IB
Created by
StemPy Lab
Which expression has the value
−
6
-6
−
6
?
−
36
\sqrt{-36}
−
36
−
4
×
−
9
\sqrt{-4} \times \sqrt{-9}
−
4
×
−
9
4
×
9
\sqrt{4} \times \sqrt{9}
4
×
9
(
−
4
)
×
(
−
9
)
\sqrt{(-4) \times (-9)}
(
−
4
)
×
(
−
9
)
Check Answer
Log in to save
Tag someone
⚑ Report
← All Quizzes
← A number x + iy, multiplied by 2 - 3i, gives 4 + i. Which values do x and y take?
Raise 1 + i to the fourth power. Which number results? →
More on
Algebra › Complex Numbers
Discussion (0)
Log in
to join the discussion.
Loading…
Problems on this topic
Let z = (√3 + i)/(1 + i). Use the principal argument, in degrees, in (-180°, 180°]…
Advanced
In the Argand plane, the points z with |z - 2i| = 2 |z + 1| lie on a circle…
Hard
Let z₁ = 3 + 4 i and z₂ = 1 - 2 i. Give angles in degrees, and use the principal argument, which…
Medium
The equation x² + px + q = 0 has real p and q…
Hard
All problems on this topic →