Use trigonometric identities to simplify the expression. sec^{2} (\frac{\pi }{2} -x) [sin^{2}(x)-sin^{4}(x)][/tex]

Literally have no clue on how to even begin this, so please help if you can!

What could explain what happened when the time was equal to 120 minutes

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.