Cos 7 T = 3 evaluar las funciones trigonométricas para ángulos que no se encuentren en el círculo unitario. Explicar y demostrar ​

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in

Find the amplitude of a sinusoidal function that models this temperature variation