(i) `26/(39),`(ii) `(16)/(72)` (iii) `(198)/(462)`

Find the values of (i) .^(200)C_(198), (ii) .^(76)C_(0), (iii) .^(15)C_(15) .

Find the value of: (i) (82)^(2) - (18)^(2) (ii) (128)^(2) - (72)^(2) (iii) 197 xx 203 (iv) (198 xx 198 - 102 xx 102)/(96) (v) (14.7 xx 15.3) (vi) (8.63)^(2) - (1.37)^(2)

Solve : (i) 2x^(2)-7x=39 (ii) x^(2)=5x (iii) x^(2)=16

Evaluate each of the following: -2-(5)/(9)(ii)(-3)/(-8)-(-2)/(7) (iii) (-4)/(13)-(-5)/(26)

Evaluate each of the following: -2-5/9 (ii) (-3)/(-8)-(-2)/7 (iii) (-4)/(13)-(-5)/(26)

In each of the following numbers, replace ** by the smallest number to make it divisible by 11 : (i) 26**5 , (ii) 39**43 , (iii) 86**72 , (iv) 467**91 , (v) 1723**4 , (vi) 9**8071

Evaluate : (i) (sin18^@)/(cos72^@) (ii) (tan26^@)/(cot64^@) (iii) cos48^@-sin42^@ (iv) c o s e c 31^@sec59^@

Express each of the following rational numbers to the lowest form. (i) (12)/(16) (ii) (-60)/(72)

Divide: (i) (-16)/(21)\ b y4/3 (ii) (-8)/(13)\ b y3/(-26)

(1095)/(1168) when expressed in simplest form is (13)/(16) (b) (15)/(16)(c)(17)/(26)(d)(25)/(26)