n>a/(b-c) where a = 3100, b = 900, c=300
ceil(a/(b-c)) where a = 3100, b = 900, c=300
b = N[a*(1-p/100)] where a=76,p=15
M=a*u+b*w where a=7,b=11,u=1400,w=230
B=m*v+n*w where m=5,n=36,v=800,w=230
c=sqrt(a^2+b^2) where a=12,b=5
p=N[m/n] where m = 9, n = 45
solve (x+3)^(1/3)=5
alpha=180-A where A=87
v=(2*r)^3 where r=4
3D plot x^2+y^2+z^2=16
log(4,3)*log(3,16)
T = (P/(sigma*S))^(1/4) where P = (228/100)*10^26, sigma = (57/10)*10^(-8), S = (1/64)*10^21
s=(a/2)^2 where a=10
v = (a*(T-t)+s)/T where s=38,T=8,t=6,a=5
solve {9^cos(x)+9^(-cos(x)) = 10/3, 2*Pi<=x,x<=7*Pi/2}
9^cos(x)+9^(-cos(x)) = 10/3, x from 2*Pi to 7*Pi/2
solve {9^cos(x)+9^(-cos(x)) = 10/3, 2*Pi<=x,x<=7*Pi/2}
9^cos(x)+9^(-cos(x)) = 10/3, x from 2*Pi to 7*Pi/2