7. The normal to a given curve y = f(x) is parallel to x-axis if
8. The minimum value of x2+8x+17 is
9. The area between the curve y=sech(x) and the x-axis is?
10. The smaller area enclosed by the circle x2+y2=4 and the line x+y=2 is?
11. The area bounded by the parabola x2=16y and its latus rectum is?
12. The equation (cosθ+isinθ)n=cos(nθ)+isin(nθ) holds if...?
13. The Square root of 3+4i are
14. Find the common root of the equations x3−7x+6=0 and x2−3x+2=0.
15. What is the least integer k which makes the roots of the equation x2+5x+k=0 imaginary?
16. if the mth term of A.P. is n and nth term is m then the rth term is
17. The product of any two terms equidistant from the beginning and the end in a finite Geometric Progression (G.P.) is constant and equal to the product of the first and last terms.
18. If the matrix A satisfies the equation A2−A−I=0, then what is the value of A−1?
19. If A is a square matrix the A+AT is a
20. The system of equations x+3y = 7 and 4x-y =19 has
21. If the system of equations x+2y−3z=1, (k+2)z=4, and (2k+1)y+z=2 is inconsistent, then what is the value of k?
22. The number of functions from {3,4,5} into {1,2} are