Digital ACT Practice Questions
Access 553 official-caliber practice questions. Filter by subject or difficulty to pinpoint your cognitive blind spots.
For what value of k does the matrix [[6, 18], [4, k]] have a determinant equal to 0?...
For what value of k does the matrix [[k, 4], [9, 6]] have a determinant equal to 0?...
For what value of k does the matrix [[k, 8], [3, 12]] have a determinant equal to 0?...
For what value of k does the matrix [[7, k], [2, 14]] have a determinant equal to 0?...
For what value of k does the matrix [[8, 24], [3, k]] have a determinant equal to 0?...
For what value of k does the matrix [[k, 5], [20, 4]] have a determinant equal to 0?...
For what value of k does the matrix [[3, 9], [k, 15]] have a determinant equal to 0?...
For what value of k does the matrix [[4, 16], [k, 20]] have a determinant equal to 0?...
What is the resulting matrix product of [[2, 3], [1, 4]] * [[3], [2]]?...
What is the resulting matrix product of [[1, -2], [3, 5]] * [[4], [1]]?...
What is the resulting matrix product of [[3, 1], [2, -1]] * [[2], [5]]?...
What is the resulting matrix product of [[4, 0], [1, 3]] * [[3], [2]]?...
What is the resulting matrix product of [[2, 5], [-1, 3]] * [[4], [1]]?...
What is the resulting matrix product of [[5, 2], [3, 1]] * [[1], [3]]?...
Given that i = sqrt(-1), what is the value of i^47?...
Given that i = sqrt(-1), what is the value of i^62?...
Given that i = sqrt(-1), what is the value of i^85?...
Given that i = sqrt(-1), what is the value of i^100?...
Given that i = sqrt(-1), what is the value of i^123?...
Given that i = sqrt(-1), what is the value of i^202?...
What is the value of the product (3 + 4i)(3 - 4i), where i = sqrt(-1)?...
What is the value of the product (5 + 2i)(5 - 2i), where i = sqrt(-1)?...
What is the value of the product (6 + 1i)(6 - 1i), where i = sqrt(-1)?...
What is the value of the product (4 + 3i)(4 - 3i), where i = sqrt(-1)?...
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