In Fig.39, the value of `k` is (a)`(77)/8` (b) `(73)/8` (c)`(71)/8` (d) `(75)/8`

In Fig.73, the value of x is 20 (b) 30 40 (d) 25

Find the value of (a) sin(pi)/(8) (b) cos(pi)/(8) (c) tan (pi)/(8)

The vertices of a parallelogram A B C D are A(3,1),B(13 ,6),C(13 ,21), and D(3,16)dot If a line passing through the origin divides the parallelogram into two congruent parts, then the slope of the line is (a) (11)/(12) (b) (11)/8 (c) (25)/8 (d) (13)/8

The vertices of a parallelogram A B C D are A(3,1),B(13 ,6),C(13 ,21), and D(3,16)dot If a line passing through the origin divides the parallelogram into two congruent parts, then the slope of the line is (a) (11)/(12) (b) (11)/8 (c) (25)/8 (d) (13)/8

The circumference of a circle is 22cm. The area of its quadrant (inc m^2) is: (77)/2 (b) (77)/4 (c) (77)/8 (d) (77)/(16)

Cube of (-1)/2i s (a) 1/8 (b) 1/(16) (c) -1/8 (d) (-1)/(16)

Find the value of : -15-(-2)-71-8+6 .

If x+y=8 , then the maximum value of x y is (a) 8 (b) 16 (c) 20 (d) 24

If the line x-1=0 is the directrix of the parabola y^2-k x+8=0 , then one of the values of k is (a) 1/8 (b) 8 (c) 4 (d) 1/4

If x^2+x+1 is a factor of the polynomial 3x^3+8x^2+8x+3+5k , then the value of k is (a) 0 (b) 2/5 (c) 5/2 (d) -1