Evaluate : `i^(-71)`

Evaluate (i^(41)+(1)/(i^(71))) .

Evaluate : (i) i^(23)" "(ii) i^(998)" "(iii)i^(-998)" "(iv) i^(-71) (v) (sqrt(-1))^(91)" "(vi) (i^(37)xx i^(-61))" "(vii) i^(-1)

Evaluate: sin521/2^(@) cos71/2^(@)

Evaluate: (i) ""^(20)C_(4) " " (ii) ""^(16)C_(13) " " (iii) .(90C_(88) (iv) ""^(71)C_(71) " " (v) ""^(n+1)C_(n) " " (vi) Sigma_(r=1)^(6) ""^(6)C_(r)

Evaluate: 4.71 xx 9

Evaluate: 69xx71

Evaluate: " "(i)" "(i^(41)+(1)/(i^(71)))" "(ii)" "(i^(53)+(1)/(i^(53)))

Evaluate the following: i^(-71) .