In right ∆lmn, sin m = 0.759. what is cos n? triangle lmn with ln as base, lm as height and mn as hypotenuse. right angle is marked at vertex l on left. angle m on top and angle n on right are marked with an arc. a. 0.121 b. 0.241 c. 0.349 d. 0.651 e. 0.759