The vector matrix 6-2 is rotated at different angles. Match the angles of rotation with the vector matrices they produce.

In δabc, if the length of side b is 3 centimeters and the measures of ∠b and ∠c are 45° and 60°, respectively, what is the length of side c to two decimal places?

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota