P_7=e_1P_6-e_2P_5+e_3P_4=-7a^2b 于是, \frac{\left(x^{2}+y^{2}+z^{2}\right)\left(x^{5}+y^{5}+z^{5}\right)}{x^{7}+y^{7}+z^{7}}=\frac{P_2\cdot P_5}{P_7}=\frac{-2a\cdot 5ab}{-7a^2b}=\boxed{\frac{10}{7}}.\square 如果对于牛顿恒等式不清楚...
Simplify the following expression. \frac{5x^{-2} - 3y^{-1{x^{-1} + y^{-1Simplify the expression. \log(72x)-\log(12)Simplify the expression. (6x^4)/(7y^(-2)) (14x^(-1)y^5)Simplify the expression (7 + 5) + 4 x 13 - 2....
Simplify: {4 x^2 - x + 5} / {x^{2/3. Simplify 7m-28/m2-3m-4 Simplify. (3x^0y^{-4})(2x^2y)^3 Simplify: 4x^2 - \frac{16x}{x^2} - 16 x^2 + 2x - \frac{8}{3x^3} + 6x^2 Simplify 5(2x^3 - ...
4 (4) The metric is used to 'raise and lower' indices in other tensors, as shown below. > g_ν,μg_ν,ρ gμ,νδρν (5) > Simplify gμ,ρ (6) Define A as an object having tensorial properties; that is, the summation convention for repeated indices in products...
Simplify (x + 1) (x^2 + x - 1). Simplify: f(x - 2) = \surd x + 2 + 8 Simplify: \dfrac{\dfrac{mp^2}{4} - 5}{4p^2 - \dfrac{p^2}{4 Simplify (x - 7)(x - 3) Simplify: y = arc\sin(\sqrt{3x^{2} - 1}) ...
{eq}\displaystyle \frac{(x^{-1}y^9z)^{-5}}{(x^{-3}y^{10}z)^{-4}} {/eq} Power of a Power: When an exponential expression is raised to another power, the result is the that the exponents are multiplied with each other. This is illustrated as: $...
Examples: √9x2=3|x|9x2=3|x|, and √16x2y2=4|xy|16x2y2=4|xy|We will combine this with the square root of a product rule in our next example to simplify an expression with three variables in the radicand.Example Simplify. √a3b5c2a3b5c2 Show Solution Analysis...
y4y−4y4y-4 Step 1 Move y−4y-4 to the numerator using the negative exponent rule 1b−n=bn1b-n=bn. y4y4y4y4Step 2 Multiply y4y4 by y4y4 by adding the exponents. Tap for more steps... Step 2.1 Use the power rule aman=am+naman=am+n to combine exponents. y4+4y4+...
Note that 4(x - 5) is not equal to zero for a = 9. Thus, a = 9 is a valid solution for the equation. When equations contain more than one variable, it is sometimes desirable to solve for one variable in terms of the other variable(s). ...
(y−49)2(y-49)2 ( ) | [ ] √ ≥ π 7 8 9 ≤ 4 5 6 / ^ × > ! 1 2 3 - + ÷ < , 0 . % ...