Oscar Said:

i need 30 math-related(Preferably, Algebra,Calculus) problems with solutions... simple problems will do..?

We Answered:

http://www.purplemath.com/
http://www.calculus.org/

Maurice Said:

Where can I find solutions manual to Multivariable Calculus by Stewart with the EVEN numbered problems?

We Answered:

I think your instructor may have the instructors answer manual that answers all the questions and if you find a pdf please let me know. I need one too.

Sam Said:

Calculus problems, given solutions need help!?

We Answered:

?I'll do one problem and you try the rest.

1)?f '(x) = 2x + 1??????equation 1

??f(x) = ? f '(x) • dx
??f(x) = ? [2x + 1] • dx
??f(x) = x² + x + C?????equation 2

??f(1) = 4 = (1)² + (1) + C
??????4 = 2 + C
????????C = 2

???f(x) = x² + x + 2????equation 2
???f(1.2) = (1.2)² + (1.2) + 2
???f(1.2) = 4.64

Bradley Said:

What are the solutions to these Pre Calculus problems?

We Answered:

1. 8 = (4 + x)/2
16 = x + 4
12 = x

4 = (3 + y)/2
8 = 3 + y
5 = y

B (12, 5)

2. (x + 7)^2 + (y + 4)^2 = 7^2 = 49

Claudia Said:

how to i find the solutions to these pre-calculus problems?

We Answered:

1)

sec x tan x - cos x cot x = sin x

divide by sin x

sec^2(x) - cot^2(x) = 1

=> sec^2(x) = 1 + cot^2(x)

=> sec^2(x) = csc^2(x)

=> sin^2(x) = cos^2(x)

=> cos^2(x) - sin^2(x) = 0

=> cos(2x) = 0

2x = ?/2, 3?/2, (?/2 + 2n?), (3?/2 + 2n?)

x = ?/4, 3?/4, (?/4 + n?), (3?/4 + n?) where n is any integer

2)

3sec^2(x) + 4cos^2(x) = 7

multiply with cos^2(x)

3 + 4cos^4(x) = 7cos^2(x)

=> 4cos^4(x) - 7cos^2(x) + 3 = 0

=> 4cos^4(x) - 4cos^2(x) - 3cos^2(x) + 3 = 0

=> 4cos^2(x) [ cos^2(x) - 1] - 3[cos^2(x) - 1 ] = 0

=> [ 4cos^2(x) - 3 ][ cos^2(x) - 1 ] = 0

case 1 : 4cos^2(x) - 3 = 0

cos^2(x) = 3/4

cos x = ?3 /2, - ?3 /2

x = ?/6, 5?/6, 7?/6, 11?/6

case 2:

cos^2(x) - 1 = 0

cos x = 1, -1

x = 0, ?,

x = 0, ?/6, 5?/6, ?, 7?/6, 11?/6 in the interval [0, 2? )

Julio Said:

can anyone please give me a list of integral calculus problems with solutions?

We Answered:

Search in google ---> "Integral Problems .pdf"