5.Evaluate the following.i.`39^(2)-38^(2)` iv.`134^(2)-133^(2)`

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)

Evaluate the following integrals (iv) int_(-a)^(a) x^(2) (a^(2)-x^(2))^(3//2)dx

Find the following |(i(1+2i)^(2))/((2+i)^4)|

Find the HCF of the following : 26x^(2)y^(2)z^(2) and 39x^(3)y^(2)z

Find the following |(2 + i)/(-1 + 2i)|

Evaluate the following: [(1+i, 0), (2,2-3i)] - [(i, -1),(3+i , 2 i)]