Mike deposits $5,000 in a 3 year cd account that yields 1.5% interest, compounded weekly. what is his ending balance, to the nearest cent at the end of 3 years ?

Choose the more precise measurement. 26.4 cm or 8.39 cm

Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .

If sin(x) = 0 and cos(x) = 1, what is tan(x)?