Find the exact value of cos2theta if sin2theta=3/4 and theta is between 0 and 90 degree

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account.write an expression to represent the total amount in his savings account.

Convert (-3,0) to polar form. a. (3,0’) b. (-3,180’) c. (3,180’) d. (3,360’)