MATEMATIKA

ilki bilen agzalara salam men shu gun matemetikadan berjek
geling herkim kyn yada ansat myssallar bersinler geling herkim synanshsyn eger kyn mysllar tapsangyz haysht edyan yazayyng hemmekishi yazsyn herkim bilyan mysallaryny
ilki ozum bashlayan
1. x^4+5x^3+4x^2-24x=0
2. a^3-2a^2+5a+26/a^3-5a^2-17a-13
3.tg20*tg40*tg60*tg80*=?
4. abc+bca+cab/ab+ba=37 c-?
5. P(n,r)=n!/(n-r) P(4,2)=3P(k,1) k-?
6. f(x)=x^2-x*lnx f^(1/e)=?
7. cos^2a+cos^b-cos(a+b)*cos(a-b)=?