Ask a New Question

1) if w = <-8, 15>, find ||w||?

2) which expression is equivalent to (sin x+1) (sin x -1)?
A. Cos^2x
B. -cos^2x
C. Cos^2x+1
D. Cos^2x-1
E. -cos^2x-1

1 answer

1. whassup? just a simple vector
|w| = √(8^2+15^2) = 17

since (sin+1)(sin-1) = sin^2 - 1
and cos^2 = 1-sin^2,

you have -cos^2 x

Similar Questions

1) translate to an algebraic expression: one less than a product of two numbersA: xy-1 2) 12/25 = ? A: ? = .48 3) Find -x when
1. 9 answers
1) translate to an algebraic expression: one less than a product of two numbersA: xy-1 2) 12/25 = ? A: ? = .48 3) Find -x when
1. 1 answer
when using multiplying by 1 to find an expression equivalent to 18/7 with a denominator of 28x, the equivalent expression that I
1. 1 answer
Use multiplying by 1 to find an expression equivalent to 15 Over 19 with a denominator of 19 z19z.The equivalent expression is
1. 2 answers

more similar questions