Объяснение:
1) abs(6.4 * sqr(x) - cos(x)) - sin(x)/cos(x)
2) cos(8 - 2.3 * sqr(a))
3) sqrt(abs(1/5*x - sqr(x)))
4) sqrt((4 - d)/sqrt(3 + c))
5) 7.43 - sqr(sin(3 * a)) - abs(sin(sqr(a)))
