chung minh rang 1-1/2^2-1/3^3-1/4^2-....-1/100^2>1/100
please,who can help me?
TÍNH GIÁ TRỊ BIỂU THỨC S=(1-1/2 mũ 2).(1-1/3 mũ 2).(1-1/4 mũ 2)...(1-1/50 mũ 2) HELP ME ! PLEASE .................................!
Tìm y
a) ( 1/2*4 + 1/4*6 + 1/6*8 + 1/8*10) * y =1/3
b) ( 1/1*3 + 1/3*5 + 1/5*7 + 1/7*9 + 1/9*11) * y =2/3
Help me please!!!!!!!!!!!!!
a)(1/2+1)x(1/3+1)x(1/4+1)x...x(1/999+1)
b)(1/2-1)x(1/3-1)x(1/4-1)x...x(1/1000-1)
c)3/22 x 8/32 x 15/42 x .... x 99/102
help me please
tinh tich p= (1-1/2).(1-1/3).(1-1/4)......(1-1/99)
please help me!!!!!!!!!
chứng minh m=1/1+2+3+1/1+2+3+4+1/1+2+3+4+5+...1/1+2+3+...+59 <2/3
1. tính:
A) 5/13 . 3/4 + -3/4 . 2/13 - -3/4 . -10/13
help me please
1/M=1/1+2+3+1/1+2+3+4+1/1+2+3+4+5+...+1/1+2+3+4+..+59
cmr M>2/3
-13 / 3 . ( 1 / 2 - 1 / 6 ) <hoặc = x < hoặc = 2 /3 . ( 1 /3 - 1 / 2 -3 / 4 )
help me ... please
ai nhanh mik tick cho nha
làm đúng nha :)))
......... !!!!!!????