What are the steps involved in making presentation?

Explain the Integral Calculus?

Solve by Cramer's rule
\(2{ x }_{ 1 }+3{ x }_{ 2 }=7;\)
\(2{ x }_{ 1 }+{ x }_{ 2 }=5\)

Total cost of the goods produced by a firm is TC(Q) = 192 + 48Q + 4Q². Find the (i) Marginal cost, (ii) Average cost, (iii) Fixed cost, (iv) Average variable cost and (v) Average fixed cost.

If the demand function is \(x=\frac { 100 }{ p } ,\ find\ { e }_{ d }\) with respect to price at the point where P = 2.