Subtract LXIII from CLVII. Write the answer in Roman numerals.

A. XCIV
B. CXIV
C. XC
D. IV

Q. Express each of the following as a Roman numeral:
(i) 2
(ii) 8
(iii) 14
(iv) 29
(v) 36
(vi) 43
(vii) 54
(viii) 61
(ix) 73
(x) 81
(xi) 91
(xii) 95
(xiii) 99
(xiv) 105
(xv) 114

Q.

In Roman numerals 'X' can be subtracted only from _____ and _____.

Q. What is XIV in Hindu-Arbic numerals?

Q. Mark against the correct answer
Which of the following is not meaningful?
(a) XIV
(b) XVV
(c) XIII
(d) XXII

Q. Differentiate each of the following from first principles:
$\left(i\right)sin\sqrt{2}x$
$\left(ii\right)cos\sqrt{x}$
$\left(iii\right)tan\sqrt{x}$
$\left(iv\right)tan{x}^2$