Please help me with this question❤️ Thanks a lot
If = /4, find the value of each expression. (Round your answers to three decimal places, if necessary.)

sin2() =
sin(^{2} ) =

Plz me plz i need and plz delte this after answer

The distance around the lake is 2 kilometers. ifelena wants to run 14 kilometers this week, howmany laps must she run around the lake

14 pointslet x be the seats in the small van and y the seats in the large van. how many seats does the large van have? a company uses two vans to transport worker from a free parking lot to the workplace between 7: 00 and 9: 00a. m. one van has 9 more seats than the other. the smaller van makes two trips every morning while the larger one makes only one trip. the two vans can transport 69 people, maximum. how many seats does the larger van have?