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Let A be the set { sin(x): 0 < x < pi }. What does it mean if we say that y is an element of A?

Tue, 20 Jul 2010 15:36:38 PDT

Asked By : atta ( Total points : 531 )

INVERSE OF A MATRIX

Sun, 18 Jul 2010 16:12:56 PDT

SOLVE THE FOLLOWING SYSTEM OF EQUATIONS USING THE INVERSE OF A MATRIX. x + y = 1 2x - y = 5 The answer is the same as using Cramer's Rule but I don't understand the process. (x = 2) (y -= -1 ...

Asked By : bobby ( Total points : 136 )

CRAMER'S RULE IN SOLVING EQUATIONS

Sun, 18 Jul 2010 16:07:47 PDT

QUESTION: Solve the following system of equations using Cramer's Rule: x + y = 1 2x - y = 5 The answer is x =2 and y = -1 BUT I DO NOT UNDERSTAND THE PROCESS. Please explain in detail. Thanks ...

Asked By : bobby ( Total points : 136 )

Implicit differentiation

Thu, 17 Dec 2009 13:13:12 PDT

Jcatta: I saw the earlier post about implicit differentiation. I was actually asking because a student was trying to figure out how to solve the problem and I became curious about it myself. My calcu ...

Asked By : math_fanatic ( Total points : 713 )

Re: what is the tangent line to xy^2 + x^2y = 2?

Mon, 14 Dec 2009 19:28:29 PDT

Catherine, Can you please show us the algebra you did to arrive at y = 1/sqrt x from xy^2 + x^2y = 2? This seems to me to be the hardest part of the problem. Finding the slope of the tangent line is ...

Asked By : math_fanatic ( Total points : 713 )

find the slope of the tangent to the curve xy^2 +x^2y=2 at the point (1,1) ?

Mon, 14 Dec 2009 16:54:32 PDT

Asked By : ( Total points : )

Comparison test ?

Sat, 05 Dec 2009 07:53:46 PDT

Use Comparison test to investigate (a) n^2/(n^2 - 7^n ) (b) n/(n^2+n-1) Where the summation is infinity and n=1

Asked By : TonTon ( Total points : 98 )