Evaluate using formula :
`(i) (188)^(2) " " (ii) (9.4)^(2) " " (iii) (10.9)^(2)`

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)

Using the formula for squaring a binomial evaluate the following: (i) (69)^(2) (ii) (78)^(2) (iii) (197)^(2) (iv) (999)^(2)

Using the formula for squaring a binomial, evaluate the following: (i) (54)^(2) (ii) (82)^(2) (iii) (103)^(2) (iv) (704)^(2)

Using the formula for squaring a binomial evaluate the following (i) (101)^(2) (ii) (99)^(2) (iii) (930^(2))

Factorise the following using appropriate identities : (i) 9x^(2)+6xy+y^(2) " " (ii) 4y^(2)-4y+1 " " (iii) x^(2)-(y^(2))/(100)

Factorise the following using appropriate identities : (i) 9x^(2)+6xy+y^(2) " " (ii) 4y^(2)-4y+1 " " (iii) x^(2)-(y^(2))/(100)

Find the values of the following using binomial theorem: (i) 49^(4) " "(ii) (1.1)^(4) (iii) 101^(3)" "(iv) (0.9)^(5)

Find the values of the following using binomial theorem: (i) 49^(4) " "(ii) (1.1)^(4) (iii) 101^(3)" "(iv) (0.9)^(5)

Using the formulae for squaring a binomial, evaluate the following : (101)^(2) (ii) (99)^(2) (iii) (93)^(2)

Using the formula for squaring a binomial, evaluate the following: (102)^(2) (ii) (99)^(2) (iii) (1001)^(2)