Note that this problem uses the word solve when it needs to say EVALUATE.
Also the required code to pass the tests shouldn't be available by COPY-AND-PASTE from Test Suite!
Find the sum of all the numbers of the input vector
surface of a spherical planet
Number of Horns on a unicorn!
Is this triangle right-angled?
multiply by three
Find cosine between two given vectors u and v.
Set x value to each odd index of vector y.
Replace x value into y value in string text.
Solve expression III
Get derivarive of polynomial given as vector array.
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