4.11.1 Vectors (A-level only)

Given that $∣2i+kj−11k∣=15|2\mathbf{i} + k\mathbf{j} - 11\mathbf{k}| = 15$

Find the two possible values of $k$

[3]

Given that $∣2i+kj−11k∣=15|2\mathbf{i} + k\mathbf{j} - 11\mathbf{k}| = 15$

Find the two possible values of $k$

[3]

4.11.1 Vectors (A-level only) Questions