If the sin 90° = 1, then which statement is true? cos 0° = 1, because the cosine and sine are complements

cos 90° = 1, because the cosine and sine are supplements

cos 0° = 0, because the cosine and sine are complements

cos 90° = 0, because the cosine and sine are supplements

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.