WebYou have 5a ⋅b = 3b ⋅b −2a ⋅a 15a ⋅b = −7b ⋅ b− 2a ⋅ a so subtract the 2nd equation from the first to get −10a ⋅ b = 10b ⋅b ⇒ b⋅ b = −a ⋅b Also 35a ⋅ b = 21b ⋅b −14a⋅ a ... Dot product of two vectors with respect to their sum and difference. WebSolve your math problems using our free math solver with step-by-step solutions. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more.

Solved Find a+b,9a+7b,∣a∣, and ∣a−b∣. (Simplify your vectors

WebAnswer (1 of 2): Solve for b: -(2 b)/3 + a = 7 b - 3 c ((4 b)/3 - 3) Expand and collect in terms of b: -(2 b)/3 + a = b (7 - 4 c) + 9 c Subtract a + b (7 - 4 c) from both sides: b (4 c - 23/3) = 9 c - a Divide both sides by 4 c - 23/3: b = (9 c - a)/(4 c - 23/3) [Now b is the subject] WebJul 24, 2014 · We get $$13(2a+3b)=26a+39b\equiv 9a+5b\pmod{17}.$$ Since $17$ divides $2a+3b$, it divides $13(2a+3b)$. But since this is congruent to $9a+5b$ modulo $17$, it follows that $9a+5b$ is divisible by $17$. Note that $-4\equiv 13\pmod{17}$, so, modulo $17$, multiplying by $-4$ has the same effect as multiplying by $13$. how to work out a relationship

Solve (3a+2b)(-3a-3b) Microsoft Math Solver

WebFind the square roots of (a) 2i; (b) 1-√3 i and express them in rectangular wordinates. #7. Find the four roots of the equation Z² +4=0 and use them to factor z4+4 into quadratic factors with real wefficients. #8. In each case, sketch the set of points determined by the given conditiong (a) /2-1+2/>1 (b) Re (iz) < -1. WebFind a + b, 9a + 7b, a , and a − b . (Simplify your vectors completely.) a = 9i − 8j + 7k, b = 7i − 9k a + b= 9a + 7b= a = a − b = Question Find a + b, 9a + 7b, a , and a − b . … WebDec 1, 2015 · Based on the fact that reduced versus increased levels of BCAT-1 exhibit opposing effects on lifespan (Figs 7b versus 9a, ... Pearson r=−0.9964) and hlh-15 (Fig. 9e, Pearson r=−0.9693) to be correlated by trend (Pearson P=0.0537), suggesting that HLH-15 may regulate bcat-1 expression during physiological ageing. how to work out area using perimeter