Please, don't use cos, tan, cot matlab functions.
As per Solution 1043996, need to ban a couple of other functions to enforce instruction.
This is wrong. For example, x = 3*pi/4, cot(x) = -1; but this solution gives sqrt(1-sin(x)^2)/sin(x) = 1.
Inner product of two vectors
So many choices
03 - Matrix Variables 3
Determine point is located in a circle or not
Calculate the sum of elements of n*n Hilbert matrix.
Find the product of the positive elements above the main diagonal.
Solve the system of equations.
Check if a string starts with another string
Return the amount of palindromes (words) in the string.
Find Adjacency Matrix
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