`i^(- 39)`

What is the value of z^(2)+(bar(z))^(2)+2|z|^(2), if z=3+2i?(A)36(B)81+12i(C)39(D)40+12i

Calculate the number of neutrons the following elements contain and state the formula used. (i) ""_(19)K^(39) " " (ii) ""_(9)F^(19) " " (iii)""_(4)Be^(9) " " (iv) ""_(13)Al^(27)

If vec (a ') = (vec b × vec c) / (vec * vec b × vec c), vec (b') = (vec c × vec a) / (vec a * vec b × vec c), vec (c ') = (vec a × vec b) / (vec a * vec b × vec c). Prove that vec (a) = (vec (b ') × vec (c')) / (vec (a ') * vec (b') × vec (c ')), vec (b) = (vec (c') × vec (a ')) / (vec (a') * vec (b ') × vec (c')), vec (c) = (vec (a ') × vec (b')) / (vec ( a ') * vec (b') × vec (c ')).

Solve the following questions. (Any two ) (i) Check if the points (3,9) , (0,6) and (-4,2) are collinear or not .

Simplify: (i) (-4/7) xx (21/20) , (ii) (-13)/9 xx (-21)/(-39)

Solve the following questions. (i) Check if the points (3,9) , (0,6) and (-4,2) are collinear or not .

The remainder when 2^(39) is divided by 39 is :

(cos ^ (3) 21 ^ (@) + cos ^ (3) 39 ^ (@)) / (cos21 ^ (@) + cos39 ^ (@))

In the following questions two equation numbered I and II are given where x and y are positive integer .You have to solve both equations and . . . . . (i) x^(2)-878=453 (ii) y^(2)-82=39