Evaluate $\sin146^\circ$sin146° correct to two decimal places and make note of the sign of your answer.
Evaluate $\cos126^\circ$cos126° correct to two decimal places and make note of the sign of your answer.
Evaluate $\tan161^\circ$tan161° correct to two decimal places and make note of the sign of your answer.
Evaluate $\sin445^\circ$sin445° correct to 2 decimal places and make note of the sign of your answer.