The first thing to do is to clear t from both expressions and compare the value to verify if it is the same: Expression 1: sin t = .3 t = arcsin (0.3) t = 0.3047 Expression 2: cos t = .48 t = arccos (0.48) t = 1.0701 Both expressions have a different value of t, therefore, both expressions do not satisfy the same number t. answer: It is not possible for the same value of t to be met: sin t = .3 and cos t = .48