Question

Задания во вкладках.....

Answer 1

$(x+b)^{11}=x^{11}+11x^{10}b+55x^{9}b^2+165x^{8}b^3+330x^{7}b^4+462x^{6}b^{5}+\ \ +462x^5b^6+330x^4b^7+165x^3b^8+55x^2b^9+11xb^{10}+b^{11}$