(cos(альфа-95°)-cos(альфа+145))/(6cos(альфа-65°))
(cosacos95+sinasin95-cosacos145+sinasin145)/6cosacos65+6sinasin65=(cosa(cos95-cos145)+sina(sin95+sin145)/6cosacos65+6sinasin65=(cosa(-2sin(95+145)/2*sin(95-145)/2)+(sina*2sin(95+145)/2*cos(95-145)/2)/6cosacos65+6sinasin65=(cos(-2**(sina*