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Summarizing Tool for Text How many times have you found yourself in a situation where you have a certain deadline for reading a report, file, document or a book? As…
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Adding and Subtracting Vectors
To add or subtract two vectors, add or subtract the corresponding components. Let u⃗ =⟨u1,u2⟩u→=⟨u1,u2⟩ and v⃗ =⟨v1,v2⟩v→=⟨v1,v2⟩ be two vectors. Then, the sum of u⃗ u→ and v⃗ v→ is the vector u⃗ +v⃗ =⟨u1+v1,u2+v2⟩u→+v→=⟨u1+v1,u2+v2⟩ The difference of u⃗ u→ and v⃗ v→ is u⃗ −v⃗ =u⃗ +(−v⃗ ) =⟨u1−v1,u2−v2⟩u→−v→=u→+(−v→) =⟨u1−v1,u2−v2⟩ The sum…
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Alternate Exterior Angles Help
The term alternate exterior angles is often used when two lines are cut by a third line, a transversal. In the figure above, line tt is a transversal cutting lines kk and ll , and there are two pairs…
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Help With Complex Numbers
A complex number is a number of the form a+bia+bi, where aa and bb are real numbers and ii is the imaginary unit, the square root of−1−1. In a complex number z=a+biz=a+bi, aa is called the "real part" of zz and bb is called the "imaginary part."…
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Binomial Probability Help
Binomial probability refers to the probability of exactly xx successes on nn repeated trials in an experiment which has two possible outcomes (commonly called a binomial experiment). If the probability of success on an individual trial…
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