Find the joint and marginal densities corresponding to the cdf F(x, y) = (1-e-ax)(1 - е-By),

Q: 1 Find Vf if f = 2 /x²+y² +z?

A:

Q: Differentiate. 3 3 y= Vx + 12x +4 -x y' D

A: y=x3+12x+43 ·x3y=x3+12x+413 ·x3y''=ddxx3+12x+413 ·x3…

Q: Estimate f(-1.02, -0.97) given that f(−1, −1) = 3, fx(−1, -1) = −2 and fy(-1, -1) = −1.

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Q: Determine the length of x = 3 + (y – 2)² , 4 <x< 19

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Q: Evaluate for: x = -2, y = 4, and z = 16 * J16 - (y +x)? |-2| 6. -14 O 2 18

A: To solve the given expression with  x =- 2, y = 4 And z = 16

Q: Find the values of x and y for which (x + y, 0) = (3,1 - y)

A:

Q: Eliminating the parameters for x = 3t - 4 and y = 5 — t yields y = x - 10 3 True False .

A: Given parametric equations:- x=3t-4 and y=5-t

Q: 3. Why can you not use the power rule to differentiate y = e*?

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Q: X 3- Ssin ² x dx ។

A:

Q: Find the equation of the line perpendicular to = 5 through the point (7, – 9) -

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Q: Find the value of x,if the distance between the pints (x,1) and (3,2) is 5

A: We have to find the value of x if the distance between the points x,1 and 3,2 is 5.

Q: 3. (x +2 ) Ex²-4)

A: y=(x+2)3x2-4

Q: x + 0.27x = 321.1

A: The given equation is

Q: Given the initial point P = ( 2, 7) and (5.-2) What are the coordinates for the terminal point Q?

A: Given initial point P = (2,7) and &lt;5,-2&gt; what is coordinates for terminal point Q.

Q: Differentiate. y = (r2 – 4r)e" %3D

A: Given,            y = r2 - 4r er

Q: Find y'. y= (6 + X 4

A:

Q: .7 Evaluate ſ x³tan-1x dx.

A: The integral is given , ∫x3tan-1x dx. Solve the integral by integration by parts, ∫x3tan-1x…

Q: X4/= 2 -x RP if y=1 Puy SMH

A:

Q: 2 D²y+y=secx²

A:

Q: 3 2 2. 十X +江 xp x3一X 8. 2.

A: To evaluate the below integral. ∫2∞x2+x32+π x3-xdx

Q: Which of the following is the point estimate of the parameter stated in question 2? ㅠ f V

A: The population proportion can be denoted by π.