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The no of terms in an AP is 40 and the last is -54,given that the sum of the 15 terms added to the sum of the first 30 terms is zero.calculate(1)the first term and common difference.(2)sum of progression

The fourth term of a GP is 6 and the seventh term is -48,calculate (a)common ratio (b)first term(c)sum of the first eleven terms

The first term of a GP is A and the common ratio is R Given that A=2r and the sum to infinity is 4.calculate the third term

A glass bottle full at mercury at 0°C has a mass of 500g On being heated through 350°C, 2.43g of mercury is expelled Calculate the mass of mercury remaining in the bottle. Take cubic expansivity of mercury to be 1.8X10-4/K and the linear expansivity of gl...