" Example 5Evaluate (i) 5! (ii) 7! (iii) 7! - 5! "

EXAMPLE 17. Evaluate: ( i ) 5^@ ( ii ) (-6)^@ ( iii ) (2^@+3^@)

Compute the following (i) 5! (ii) 7 !

Compute the following (i) 7!-5! (ii) 4!-3! (iii) (9!-8!)/(7!)

Write the real and imaginary parts of the following complex numbers: (i) 7+3i (ii) 0+7i (iii) sqrt(5)+0i

Evaluate: (i) 3 ^(-4) " "(ii) (-4) ^(3) " "(iii) ((3)/(4))^(-2)" "(iv) ((-2)/(3)) ^(-5) " "(v) ((5)/(7))^(0)

Write down the reciprocal of: (i) 5/8 (ii)7 (iii) 1/12 (iv) 12 3/5

Pick out the mixed fractions from these. i) 3/5 ii) 1 2/7 iii) 7/2 iv) 2 3/5

Simplify: (i) 4/9-:5/6 (ii) 5/7-:10 (iii) 5 3/5-:2 1/10

Find the TSA and LSA of the cube whose side is (i) 8 m (ii) 21 cm (iii) 7.5 cm

Evaluate : (i) (12!)/(10!) (ii) (14!)/(10!5!) (iii) (1)/(4!)+(1)/(5!)+(1)/(6!)+(1)/(7!)