Help please it's a pre calculus question, could I also get the working out thank you as soon as possible

3 Let t be a real number and let P 2 be the point on the unit circle that corresponds to t. 2 (a) Find the values of cost, and tant, and then evaluate 2 cost + tant . 2 cost + tan't (b) Find the exact value of sin 1 sin 3 Please show your work on paper and upload the file. Choose File No file chosen Note: To enter 7, type pi