`3/7+(-5/14)+(-11/14)`

Write the additive inverse of each of the following rational numbers: 4/9 (ii) (-13)/7 (iii) 5/(-11) (iv) (-11)/(-14)

Simplify: (1/4xx2/7)-\ (5/(14)xx(-2)/3)+\ (3/7xx9/2)

Which of the following cannot be valid assignment of probability for elementary events or outcomes of samples space S={w_1, w_2, w_3, w_4, w_5, w_6, w_7}: Elementary events w_1 w_2 w_3 w_4 w_5 w_6 w_7 i. 0.1 0.01 0.05 0.03 0.01 0.2 0.6 ii. 1/7 1/7 1/7 1/7 1/7 1/7 1/7 iii. 0.7 0.6 0.5 0.4 0.3 0.2 0.1 iv. 1/(14) 2/(14) 3/(14) 4/(14) 5/(14) 6/(14) (15)/(14)

Find: (-3)/(14)-((-2)/(14))

Evaluate : (-12)/5+(-7)/(20)+3/(14)+1/7+(-1)/(10)

The value of sinpi/(14)sin(3pi)/(14)sin(5pi)/(14)sin(7pi)/(14)sin(9pi)/(14)sin(11pi)/(14)sin(13pi)/(14) is equal to___________

The value of sin(pi/14)sin(3pi/14)sin(5pi/14)sin(7pi/14)sin(9pi/14)sin(11pi/14)sin(13pi/14) is equal to___________

Divide the sum of (3)/(7) "and" (-5)/(14) "by" -(1)/(2) .

Express each of the following as a rational number of the form p/q :\ (15)/2+9/8+(-11)/3+6+(-7)/6 (ii) (-7)/4+0+(-9)/5+(19)/(10)+(11)/(14)

Evaluate: ((2)/(3)xx(9)/(8))-((5)/(44)xx(-11)/(15))-((35)/(28)div(21)/(-14))