One degree on the equator of the earth is equivalent to _____ in time.
A). 1 hour
B). 30 minutes
C). 4 minutes
D). 1 minutes
2. Find the minimum value of tan4A + cot4A
3. Minimum value of \(20{\sec ^2}{\rm{\theta \;}} + {\rm{\;}}5{\rm{\;cose}}{{\rm{c}}^2}{\rm{\theta }}\)
5. If sin 7x = cos 11x , then the value of tan 9x + cot9x is
6. If A,B and C be the angles of a triangle, then put of the following. the incorrect relation is :
8. If cot(A/2) = x, then the value of x is?