(v)(15)^(1/4)

Find the additive inverse of : (i)5 (ii) -9 (iii) (3)/(14) (iv) (-11)/(15) (v) (15)/(-4) (vi) (-18)/(-13) (vii) 0 (viii) (1)/(-6)

cos^(-1)(1/4)=sin^(-1)sqrt(1-1/16)=sin^(-1)((sqrt(15))/4) =tan^(-1)(sqrt(15))

The fractional part of (2^(4n))/(15) is (n in N)(A)(1)/(15) (B) (2)/(15)(C)(4)/(15) (D) none of these

The threshold frequency v_@ for a metal is 0.5 x 10^(15) s^(-1) . What will be the kinetic energy of a photoelectron emitted when radiation of frequency v=1.5 x 10^(15) s^(-1) strikes on a metal surface?

Add the following rational numbers: {:((i) (-2)/(5) and (4)/(5),(ii) (-6)/(11) and (-4)/(11) , (iii) (-11)/(8) and (5)/(8)), ((iv) (-7)/(3) and (1)/(3),(v) (5)/(6) and (-1)/(6),(vi) (-17)/(15) and (-1)/(15)):}

(20u^(3)v6(2)-15u^(2)v)/(10u^(4)v+30u^(3)v^(3)) Which of the following is the reduced form of the expression above?

The probability that a number selected at random from the numbers 1,2,3, ; 15 is a multiple of 4, is (4)/(15) (b) (2)/(15) (c) (1)/(5) (d) (1)/(3)