(v) `3/4times(1/2+1/3)=(3/4times1/2)+3/4`

Show ((-8)/(7))times[(1)/(2)times((-4)/(3))]=[((-8)/(7))times(1)/(2)]times((-4)/(3))

Evaluate the following : (i) 2/3 times 9/16" (ii) " 3/7 times 1""3/4 .

Show that (4)/(7)times((-2)/(8)+(3)/(4))=(4)/(7)times(-2)/(8)+(4)/(7)times(3)/(4)

Evaluate: (-2) times (-3) times (-1) times (-4) times (-7)

((2)/(3))^(4)times((3)/(2))^(5)times((5)/(3))^(-2)times((3)/(5))^(-3)

Evaluate the following : (i) 2/3 times 60" (ii) " 4/7 times 280" (iii) "2/3 " of "1""4/9 .

Some pictures (a) to (c) are given below. Tell which of them show (i) 3 xx 1/5=3/5 (ii) 2 xx 1/3=2/3 (iii) 3 xx 3/4 =(2) 1/4

Find the value of. (i) (3^@+4^(-1)) xx 2^2 (ii) (2^(-1)xx 4^(-1))-: 2^(-1) (iii) (1/2)^-2 + (1/3)^-2 + (1/4)^-2 (iv) (3^-1 + 4^-1+ 5^(-1))^0 (v) {((-2)/3)^-2}^2

If ((3(1)/(4) )^(4) -(4( 1)/(3))^(4))/( (3,(1)/(4) )^(2) -(4,(1)/(3))^(2) )= ((13a)/(12))^(2) , find a.

If veca and vecb are two unit vectors inclined at an angle pi/3 then { veca xx (vecb+veca xx vecb)} .vecb is equal to (a) -3/4 (b) 1/4 (c) 3/4 (d) 1/2