(26)-a^(3)-(1)/(a^(3))-2a+(2)/(a)

Factorise : a^(3)+(1)/(a^(3))+(26)/(27)

(26.57)^(1//3)

(26)^(2)+(32)^(2)+?=(64)^(2)(1)2246(2)2396(3)2276(4)2386

Find (26)^((1)/3)).

2x+(8)/(3)=(26)/(3)-x

If A={:[(3,2),(0,1)]:}" then:(A^(-1))^(3)= ...a) (1)/(27)[(1,-26),(0,27)] b) (1)/(27)[(-1,26),(0,27)] c) (1)/(27)[(1,-26),(0,-27)] d) (1)/(27)[(-1,-26),(0,-27)]

If equation of the plane through the parallel lines (x+1)/(3)=(y-2)/(2)=(z)/(1) and (x-3)/(3)=(y+4)/(2)=(z-1)/(1) is ax+by-26z+6=0 , then a+b = ___________

The sum of the series (2)/(3)+(8)/(9)+(26)/(27)+(80)/(81)+ to n terms is n-(1)/(2)(3^(-n)-1)(b)n-(1)/(2)(1-3^(-n))(c)n+(1)/(2)(3^(n)-1)(d)n-(1)/(2)(3^(n)-1)