Find the sum of first n terms of the series, 5+6+8+12+20+…

Find the sum of first n terms of the series, 4+5+8+13+20+…

Find the number of protons in 12 grams of _6^12C .

Find the sum of the infinite series. 1/(2.5.8)+1/(5.8.11)+1/(8.11.14)+...

Find S_n for the series. 1.5 + 2.6 + 3.7 + …..

Find the sum of the infinite series. 1/(1.2)+1/(2.3)+1/(3.4)+...

Find the sum of the infinite series. 1/(1.2.3)+1/(2.3.4)+1/(3.4.5)+...

Find the sum of the infinite series. 3/(1^(2).2^(2))+5/(2^(2).3^(2))+7/(3^(2).4^(2))+...

In a Binomial distribution, the sum of its mean and the variance is 1.8 . Find the probability of two successes, if the event was conducted 5 times.

Find the maximum value of the 5 sinx+12cosx