Find the value of m given that the sum of first m terms is equal to the sum of the first (m+1)terms

In the fihure ,the length of rectangle ABCD is 3 times its width.find the value of m Find the value of m given that the sum of first m terms is equal to the sum of the first (m+1)terms Find the value of sin 5pi/4 P varies inversely as (m+1),when p=4,m=8,find the value of p when m=11.再现等~ 是英文版的哦!find the value of ratiofind the value of ratio :1.2million :360 thousand. 急~~帮忙,英文数学题!An item marked at $M is sold at a discount of 2%. If the selling price of the item is $(M-0.12),find the value of M. the value of the value of time the value of 帮我做几道英文数学题1.Find the value of 2x – 20. given that f(x)=2x-3,find the value of f(x+h). If cos(a) = 2/3,find the value of cos(4a) Find the value of 2a+10 when a is equal to 4.5 Find the minimum value of A=x^2 + y^2 if x + y =10 Find the value of 2a+10 when a is equal to 4.5 Java find the approximate value of e using 2+(2!)^-1+(3!)^-1+(4!)^-1+... 777 的777 次方的最后一个数字是什么?Find the last digit in the value of 777^777 urgent!if x satifies the equation sinx+cosx =√2,find the value of tan (x/2)with process