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54 Answered Questions for the topic cal

Cal Calculus

04/24/22

Find the absolute extrema of 𝑓(𝑥) = 2 sin 𝑥 − cos 2𝑥 on the interval [0, 2pi]

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Cal Math Calculus Mathematics

02/25/21

Find the unit vector in the direction of steepest ascent and descent at P? What is the vector that points in a direction of no change?

Consider the function f(x,y)=5x2-5y2-7 and the point (-2, -1).a) Find the unit vectors that give the direction of the steepest ascent at P?b) Find the unit vectors that give the direction of the... more

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Cal Calculus Calc

02/02/21

Find the area of the triangle with vector?

Find the given points A, B, and C find the area of the triangle with vertices A, B, and C.A(2, 8, 3), B(9, 16, 4), C(4, 9, 4).The area is ____.

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Cal Calculus

06/15/20

Find the absolute maximum value and the absolute minimum value

Find the absolute maximum value and the absolute minimum value, if any, of the function. (If an answer does not exist, enter DNE.)g(x) = x2 + 5x^2/3 on [0,1]Max=Min=

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Cal Precalculus

03/26/20

Find the inverse of A. Show all work. To find the inverse of A, solve the matrix equation AX = I for X

A= [ 1 4 ] [ -1 -3 ]

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Cal Math Mathem Pre

07/11/19

Math word problem

A motorboat takes 5 hours to travel 200 km going upstream. The return trip takes 4 hours going downstream. What is the rate of the boat in still water and what is the rate of the current?

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Cal Math Precalculus Mathem

07/10/19

Math Word problem

Debra, Kareem, and Ahmad sent a total of 133 text messages over their cell phones during the weekend. Debra sent 5 more messages than Kareem. Ahmad sent 4 times as many messages as Debra. How many... more

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Cal Calculus

03/20/19

Calculus question

Suppose the integral from 1 to 6 g(x)dx=10 and the integral from 4 to 6 g(x)dx=-2 , find the value of the integral from 1 to 4 2g(x)dx. I have tried solving this problem but cannot and everyone... more

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Cal

12/06/18

If Dy/dx=cos(x/2) and y(0)=3 find y(x)

I really confuse with problem, can you help me to find the answer please

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Cal Calculus

02/10/17

Evaluate the integral by interpreting it in terms of area

0 ∫1 x+sqrt(1-x^2) dx

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Cal

02/09/17

Find area under y= sinx between [ 0,pi]?(rieman sum)

Find area under y= sinx between [ 0,pi]? . How would I do this using a Rieman sum

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Cal Calculus

02/09/17

Calculating the derivative of an integral

d/dx 1 ∫(1/x) cos^3 (t) dt = (-1/x^2) cos^3(1/x) What I dont understand is where the -1/x^2 came from . I thought that the upper bound was just the derivative but isnt the derivative of 1/x... more

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Cal

02/06/17

Converting a rieman sum to definite integral

∑ (1)/(sqrt(4n2-i2))

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Cal Calculus

12/16/16

Abs. Max/min on a guven interval

f(x)= (x^2)/(x^2+1) [ 1,2] Its saying that the abs min is (2,4/5) and max is (1,1/2) . I dont understand isnt it supposed to be the opposite. Shouldnt the max be (2, 4/5) ? Isnt 0.8 bigger... more

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