Discover Questions

The elements of group 1A and 2A are called sblock elements because? What is the excess concrete cover for reinforcement bars and how does it affect the quality of RCC member? Points A and B each have an electric potential of + 5 V. How much work is required to take 1 mC of charge from A to B? Perform the following operations and simplify:
a. x(2x + 3)(2x – 3)
b. (3x + 2)^2? Expand and simplify (x-y) square?