Get Started with ixamBee
Start learning 50% faster. Sign in now
5+55+55+555+…………..+ n terms 5(1+11+111+………………………+ n terms) Multiply and divide by 9 9/9 × 5(1+11+111+………………………+ n terms) 5/9 × (9+99+999+ …………………+ n terms) 5/9 × [(10-1) + (100-1) + (1000-1) +…………… + n terms] 5/9 × [(10 + 10² + 10³ +………+ n terms) – (1+1+1+………+ n terms)] 5/9 × [(10 + 10² + 10³ +………+ n terms) – n] In the series [10 + 10² + 10³ +………+ n terms] First term, a = 10 common ratio, r = 10 Sum of n terms = (a(r^n-1))/((r-1)) Therefore The required answer = 5/9 [((10(〖10〗^n-1))/9 - n)]
A cybrid is:
Wheat production in India-
Which of the following insect having complete metamorphosis?
Lagenaria siceraria is the scientific name of:
Which process is primarily involved in the synthesis of a complementary RNA strand from a DNA template?
Male and female plants of spinach are identified on the basis of
Which cereal crop is having least amount of lysine and tryptophan?
Which of the following is an advantage of food processing?
_____________ means developing entrepreneurship in agricultural sector.
The rearing of young bee to replace the old queen bee is
