If the roots of the equation 4x^2- kx + 1= are equal, then the value of k is
If the roots of the equation 4x^2- kx + 1= are equal, then the value of k is
How many numbers lying between 100 and 1000 can be formed with the digits 0, 1, 2, 3, 4, 5, if the repetition of the digits is not allowed?
एक पहिया एक मिनट में 360° परिक्रमण करता है तो एक सेकंड में कितने रेडियन माप का कोण बनायेगा
water is pouring into a conical vessel of diameter 5.2 metre and slant height 6.8 metre as shown in the figure at the rate of 1.8 metre cube per minute how long will it take to fill the vissel
Prove that "Equal chords of a circle subtend equal angle at the centre