The intersection of plane R and plane P is Point is not on plane P.
CE DB

and intersect at point

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?

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) = .