The value of `4 frac{7}{8}`is

The value of (sin frac(pi)(8) + i cos frac(pi)(8))^(8)/((sin frac(pi)(8) - i cos frac(pi)(8))^(8)) is :

If f(x)=x^3-frac{1}{x^(3)} find the value of f(x)+f(frac{1}{x})

Let 3^(a) = 4, 4^(b) = 5, 5^(c) = 6, 6^(d) = 7, 7^(e) = 8 and 8^(f) = 9 . The value of the product (abcdef), is

Find the value of x for which (8x+4),\ (6x-2) and (2x+7) are in A.P.

Find the values of a for which points (8,-7,a),(5,2,4) and (6,-1,2) are collinear.

The value of the expression tan. (pi)/(7)+ 2 tan. (2pi)/(7)+ 4 tan . (4pi)/(7)+ 8 cot. (8pi)/(7) is equal to

The value of cos((2pi)/7)cos((4pi)/7)cos((6pi)/7) is a. -1//2 b. \ 1//2 c. \ 1//4 d. 1//8

If the sum of the series 1+(3)/(2)+(5)/(4)+(7)/(8)+……+((2n-1))/((2)^(n-1)) is f(n) , then the value of f(8) is

If 10y=7x-4 and 12x+18y=1 . Find the value of 4x+6y and 8y-x .

What is the value of (2/4)^(-8)