यदि `vec(a)=vec(i)+vec(j)+3vec(k),vec(n)=2vec(i)+3vec(j)-5vec(k)` तब `vec(a).vec(b)=`A. 10B. -10C. 20D. 5

यदि `vec(a)=vec(i)+vec(j)+3vec(k),vec(n)=2vec(i)+3vec(j)-5vec(k)

1.	यदि `vec(a)=vec(i)+vec(j)+3vec(k),vec(n)=2vec(i)+3vec(j)-5vec(k)` तब `vec(a).vec(b)=`A. 10B. -10C. 20D. 5
Answer» Correct Answer - B

यदि `A=[(9,10,11),(12,13,14)]` और `B=[(11,10,9),(8,7,6)]` तो `A+B=..........`A. `[(20,20,20),(20,20,20)]`B. `[(10,10,10),(10,10,10)]`C. `[(10,5,10),(5,10,10)]`D. `[(25,10,15),(15,10,25)]`
`(d)/(dx)(sec x)=........`A. `sec^(2)x`B. `tan^(2)x`C. `sec x tan x`D. 0
`(d)/(dx)(sin^(-1)x)=.............`A. `(1)/(1+x^(2))`B. `(1)/(1-x^(2))`C. `(1)/(sqrt(1-x^(2)))`D. `(1)/(sqrt(1+x^(2)))`
यदि `|(x,5),(5,x)|=0` तो `x=..........`A. `+5`B. 6C. 0D. 4
`(d)/(dx)(sin^(-1)x+cos^(-1)x)=..........`A. `(2)/(1+x^(2))`B. 0C. 2D. 1
`tan^(-1). (1)/(2) + tan^(-1). (1)/(4)=...........`A. `tan^(-1). 3/2`B. `tan^(-1). 6/7`C. `tan^(-1). 5/6`D. `tan^(-1). 1/2`
`int 0.dx=..........`A. kB. 0C. 1D. -1
यदि `y=sin (log x)`, तब `(dy)/(dx)= ............`A. `(1)/(x) cos ( log x)`B. `(1)/(x) sin ( log x)`C. 0D. 1
`int x^(5)dx=...........`A. `(x^(6))/(6)+k`B. `(x^(5))/(5)+k`C. `(x^(7))/(7)+k`D. `(x^(8))/(8)+k`
यदि `y=x^(5)` तो `(dy)/(dx)=.........`A. 5xB. 6xC. `5x^(4)`D. `5x^(2)`