Answer:
7i.
Step-by-step explanation:
Note : The given expression must be .
We have to write this radical value in the imaginary value.
The given value can be rewritten as
Therefore, the required expression is 7i.
2. Find the value of x in the triangle. Round your answer to the nearest tenth of a degree. Show your work.
2 answers:
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<u>ΔACB</u> <u>ΔCDA</u>
AC² + BC² = AB² AD² + CD² = AC²
BC² = AB² - AC² BC² + CD² = AC² (AD=BC is given)
BC² = AC² - CD²
AB² - AC² = AC² - CD² (both sides were = to BC²)
AB² + CD² = 2AC²
(3)² + (√2)² = 2AC² (AB=3 and CD=√2 were given)
9 + 2 = 2AC²
11 = 2AC²
= AC²
= AC
= AC