Se considera mulțimea A={1,2,3,…,n+1} n€N
Sa se determine:
a) nr. submultimilor B ale lui A astrele încât {1,2} ⊂ B
b) numărul submultimilor B ale lui A cu proprietatea ca {2,3} ⊂ B ⊂ {1,2,3,…,n}

DAU FUNDA!!

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

Me! i will mark you brainliest if you are right and show your i don't get polynomials and all the other stuff. multiply and simplify.2x(^2)y(^3)z(^2) · 4xy(^4)x(^2)show your