cos(a+125)*1/(sin(a+35)^1) если a=-1/2 (упростите выражение)

$$frac{cos{left (a + 125 right )}}{sin^{1}{left (a + 35 right )}}$$

$$frac{cos{left (a + 125 right )}}{sin^{1}{left (a + 35 right )}}$$

cos((-1/2) + 125)/sin((-1/2) + 35)^1

$$frac{cos{left ((-1/2) + 125 right )}}{sin^{1}{left ((-1/2) + 35 right )}}$$

cos(-1/2 + 125)/sin(-1/2 + 35)^1

$$frac{cos{left (- frac{1}{2} + 125 right )}}{sin^{1}{left (- frac{1}{2} + 35 right )}}$$

cos(249/2)/sin(69/2)

$$frac{cos{left (frac{249}{2} right )}}{sin{left (frac{69}{2} right )}}$$

$$frac{cos{left (a + 125 right )}}{sin{left (a + 35 right )}}$$

cos(a + 125)/sin(a + 35)

$$frac{cos{left (a + 125 right )}}{sin{left (a + 35 right )}}$$

$$frac{cos{left (a + 125 right )}}{sin{left (a + 35 right )}}$$

cos(125 + a)
————
sin(35 + a)

$$frac{cos{left (a + 125 right )}}{sin{left (a + 35 right )}}$$

$$frac{cos{left (a + 125 right )}}{sin{left (a + 35 right )}}$$

cos(125 + a)*csc(35 + a)

$$cos{left (a + 125 right )} csc{left (a + 35 right )}$$

cos(125 + a)
————
sin(35 + a)

$$frac{cos{left (a + 125 right )}}{sin{left (a + 35 right )}}$$

cos(a + 125)
————
sin(35 + a)

$$frac{cos{left (a + 125 right )}}{sin{left (a + 35 right )}}$$

cos(125 + a)
————
sin(35 + a)

$$frac{cos{left (a + 125 right )}}{sin{left (a + 35 right )}}$$

cos(125)*cos(a) – sin(125)*sin(a)
———————————
cos(35)*sin(a) + cos(a)*sin(35)

$$frac{- sin{left (125 right )} sin{left (a right )} + cos{left (125 right )} cos{left (a right )}}{sin{left (a right )} cos{left (35 right )} + sin{left (35 right )} cos{left (a right )}}$$