Multiply complex numbers 5+6i and 5-6i in the same way as you multiply binomials.
By definition, i² is -1.
Do the multiplications.
Now cancel -30i & +30i
Now the equation becomes
________
Hope it helps.
ŕάίήвόώşάĻţ2²2²
How do you write (6)^-2 without exponents?
2 answers:
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Given:
The shape is square.
To find:
The surface area and volume of a square.
Explanation:
The length of each side of the square is "a" units.
The formula for the surface area of the square is,
The formula for the volume of the square is,
Using these formulas, we can find the surface area and the volume of the square that has side length "a" units.
For example:
Let the side length of 3cm for a square.
So, the dimensions are 3cm by 3cm by 3cm.
That is,
The Length is 3cm.
The breadth is 3cm.
The height is 3cm.
So,
The surface area of the square is,
Therefore, the surface area of the square is 54 square cm.
The volume of the square is,
Therefore, the volume of the square is 27 cubic cm.