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Simplifying Pure Imaginary Numbers

If $z=2-3i$ , then the conjugate of $z$ is:

$2+3i$

$2-3i$

$3i$

If $z=8+3i$ , then the conjugate of $z$ is:

$8+3i$

$8-3i$

$4i$

If $z=14$ , then the conjugate of $z$ is:

$12$

$-14i$

$14$

If $z=5i$ , then the conjugate of $z$ is:

$5$

$-5i$

$5i$

If $z=4+11i$ , then the conjugate of $z$ is:

$4-11i$

$4+11i$

$11i$

If $z=8+i$ , then the conjugate of $z$ is:

$8$

$8+i$

$8-i$

If $z=2+i$ , then the conjugate of $z$ is:

$2-i$

$-2i$

$2i$

If $z=-9i$ , then the conjugate of $z$ is:

$2$

$9i$

$-2$

If $z=-\frac{4}{3}i$ , then the conjugate of $z$ is:

$4+3i$

$1-2i$

$\frac{4}{3}i$

If $z=\frac{3-7i}{2+6i}$ , then the conjugate of $z$ is:

$1+i$

$1-i$

$-\frac{9}{10}+\frac{4}{5}i$

Questions

Time

Score

Simplifying Pure Imaginary Numbers

If ﻿z=2−3iz=2-3iz=2−3i﻿﻿, then the conjugate of ﻿zzz﻿ is:

﻿2+3i2+3i2+3i﻿

﻿2−3i2-3i2−3i﻿

﻿3i3i3i﻿

If ﻿z=8+3iz=8+3iz=8+3i﻿﻿, then the conjugate of ﻿zzz﻿ is:

﻿8+3i8+3i8+3i﻿

﻿8−3i8-3i8−3i﻿

﻿4i4i4i﻿

If ﻿z=14z=14z=14﻿﻿, then the conjugate of ﻿zzz﻿ is:

﻿121212﻿

﻿−14i-14i−14i﻿

﻿141414﻿

If ﻿z=5iz=5iz=5i﻿﻿, then the conjugate of ﻿zzz﻿ is:

﻿555﻿

﻿−5i-5i−5i﻿

﻿5i5i5i﻿

If ﻿z=4+11iz=4+11iz=4+11i﻿, then the conjugate of ﻿zzz﻿ is:

﻿4−11i4-11i4−11i﻿

﻿4+11i4+11i4+11i﻿

﻿11i11i11i﻿

If ﻿z=8+iz=8+iz=8+i﻿, then the conjugate of ﻿zzz﻿ is:

﻿888﻿

﻿8+i8+i8+i﻿

﻿8−i8-i8−i﻿

If ﻿z=2+iz=2+iz=2+i﻿﻿, then the conjugate of ﻿zzz﻿ is:

﻿2−i2-i2−i﻿

﻿−2i-2i−2i﻿

﻿2i2i2i﻿

If ﻿z=−9iz=-9iz=−9i﻿﻿, then the conjugate of ﻿zzz﻿ is:

﻿222﻿

﻿9i9i9i﻿

﻿−2-2−2﻿

If ﻿z=−43iz=-\frac{4}{3}iz=−34​i﻿, then the conjugate of ﻿zzz﻿ is:

﻿4+3i4+3i4+3i﻿

﻿1−2i1-2i1−2i﻿

﻿43i\frac{4}{3}i34​i﻿

If ﻿z=3−7i2+6iz=\frac{3-7i}{2+6i}z=2+6i3−7i​﻿, then the conjugate of ﻿zzz﻿ is:

﻿1+i1+i1+i﻿

﻿1−i1-i1−i﻿

﻿−910+45i-\frac{9}{10}+\frac{4}{5}i−109​+54​i﻿

Incorrect

Great!

If $z=2-3i$ , then the conjugate of $z$ is:

$2+3i$

$2-3i$

$3i$

If $z=8+3i$ , then the conjugate of $z$ is:

$8+3i$

$8-3i$

$4i$

If $z=14$ , then the conjugate of $z$ is:

$12$

$-14i$

$14$

If $z=5i$ , then the conjugate of $z$ is:

$5$

$-5i$

$5i$

If $z=4+11i$ , then the conjugate of $z$ is:

$4-11i$

$4+11i$

$11i$

If $z=8+i$ , then the conjugate of $z$ is:

$8$

$8+i$

$8-i$

If $z=2+i$ , then the conjugate of $z$ is:

$2-i$

$-2i$

$2i$

If $z=-9i$ , then the conjugate of $z$ is:

$2$

$9i$

$-2$

If $z=-\frac{4}{3}i$ , then the conjugate of $z$ is:

$4+3i$

$1-2i$

$\frac{4}{3}i$

If $z=\frac{3-7i}{2+6i}$ , then the conjugate of $z$ is:

$1+i$

$1-i$

$-\frac{9}{10}+\frac{4}{5}i$