`(17)/(15)xx(17)/(15)+2/(15)xx2/(15)-(17)/(15)xx4/(15)` is equal to (a) 0 (b) 1 (c) 10 (d) 11

(17)/(15)xx(17)/(15)+(2)/(15)xx(2)/(15)-(17)/(15)xx(4)/(15) is equal to (a)0(b)1(c)10(d)11

Is (-15)xx[(-7)+(-1)]=(-15)xx(-7)+(-15)xx(-1) ?

(210)/(14)xx(17)/(15)xx? = 40 46

(3^(-1)xx5^(-1))^(-1) = (a) 1/(15)\ \ \ (b) -1/(15) (c) 15 (d) -15

Which of the following are in descending order of their values? (5)/(9),(7)/(11),(8)/(15),(11)/(17) (b) (5)/(9),(8)/(15),(11)/(17),(7)/(11) (c) (11)/(17),(7)/(11),(5)/(15),(5)/(9)(d)(11)/(17),(7)/(11),(5)/(9),(8)/(15)

If sin theta = ( 8)/(17), then the value of cos theta and tan theta is (a) (15)/(17), (8)/(15) (b) (15)/(8) , (8)/(15) (c) (15)/(17), (15)/(8) (d) None of these