Answer:
d² ≥ 17
Step-by-step explanation:
Answer:
Solution : 6 + 6i
Step-by-step explanation:
This is the expression we have to solve for. Now normally we could directly apply trivial identities and convert this into standard complex form, but as the expression is too large, it would be easier to convert into trigonometric form first ----- ( 1 )
( Multiply both expressions )
( Simplify for both and )
=
( Substitute )
Now that we have this in trigonometric form, let's convert into standard form by applying the following identities ----- ( 2 )
sin(π / 4) = √2 / 2 = cos(π / 4)
( Substitute )
= =
= =
= - Therefore our solution is option a.
If you would like to simplify the product using the distributive property, you can do this using the following steps:
<span>(5h – 5) * (5h – 6) = 5h * 5h - 5h * 6 - 5 * 5h + 5 * 6 = 25h^2 - 30h - 25h + 30 = 25h^2 - 55h + 30
</span>
The correct result would be <span>a. 25h^2 – 55h + 30</span>.