<prompt> Bala cosine ea 45nan  <response>: Instruction in English: Calculate the cosine of 45 . Response in English: The cosine of an angle is defined as the ratio of the adjacent side to the hypotenuse of a right triangle. For an angle of 45, the value of the cosine is cos45 22 0.7071 . Response in Sesotho: Cosine ea angle e hlalosoa e le karo-karolelano ea lehlakore le haufi le hypotenuse ea khutlotharo e nepahetseng. Bakeng sa angle ea 45, boleng ba cosine ke cos45 22 0.7071 