Fat soluble vitamins are :

(a) A, D and E

(b) B, C and D

(c) B, D and E

(d) A, B and C

Q. Complete the following :
Vitamin A, D, E and K : Fat soluble vitamins : : Vitamin B and C : _____________.

Q. lf $y=e^{-2x}\cos 3x$ and $\frac{d^{2}y}{d{x}^2}+a\left(\frac{dy}{dx}\right)+by=0$, then $a=?,b=?$

Q. $\frac{a+bx}{a-bx}=\frac{b+cx}{b-cx}=\frac{c+dx}{c-dx},(x\ne 0)$ then show that $a,b,c$ and $d$ are in G.P.

Q. If $\underset{0}{\overset{1}{\int }}{e}^{-x^2}dx=a$ and $\underset{0}{\overset{1}{\int }}{x}^2{e}^{-x^2}dx=\frac{A}{e}+aB$, then $A+B$ is .

Q. If $\frac{a+bx}{a-bx}=\frac{b+cx}{b-cx}=\frac{c+dx}{c-dx}(x\ne 0)$ then show that $a,b,c$ and $d$ are in G.P.