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Math

How to prove the identity `sin^2x + cos^2x = 1` ?

Posted by mathexpert on October 29, 2008 at 9:20 PM via web. 3 educator answers.

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Math

What is 1 1/2 divided by 2?

Posted by zero0master on November 10, 2008 at 4:14 AM via web. 9 educator answers.

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Math

What is the antiderivative of f(x)=sec x ?

Posted by portoruj on November 16, 2010 at 1:16 AM via web. 1 educator answer.

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Math

integral of sin^2 x  cos^3 x  dx

Posted by nashflores on July 25, 2011 at 8:03 AM via web. 1 educator answer.

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Math

Which is the solution of the equation sinx=cosx?

Posted by pufsipene on April 21, 2009 at 11:46 PM via web. Be the first to answer.

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Math

What do the letters R,Q,N,Z mean in math?  

Posted by dariuszzacz on September 7, 2010 at 6:21 AM via web. 1 educator answer.

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Math

What is the integral of cos 2x?

Posted by grade83 on April 1, 2011 at 2:50 PM via web. 1 educator answer.

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Math

What are x values for cos 2x = cos x?

Posted by frontman0 on October 30, 2010 at 1:31 AM via web. Be the first to answer.

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Math

3/5 of what number = 15?

Posted by anime on February 7, 2009 at 4:55 AM via web. 2 educator answers.

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Math

e^2x -3e^x +2=0     solve for x

Posted by seedrasoso on June 16, 2010 at 7:23 AM via web. 1 educator answer.

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Math

integration of sin^7 x cos^5 x

Posted by ignacioo on July 25, 2011 at 4:30 PM via web. Be the first to answer.

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Math

ln(x+2) - ln (3x + 1) = 4

Posted by damdoomdima on August 17, 2010 at 8:36 AM via web. 1 educator answer.

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Calculus

Verify if limit of ln(1+x)/x is 1, x-->0

Posted by lexijuly on February 25, 2011 at 3:43 PM via web. 1 educator answer.

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Math

How do I integrate dy/dx = x - y please ?

Posted by reflex on May 20, 2010 at 10:39 AM via web. 1 educator answer.

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Math

Solve the equation x^3 - 2x^2 - x + 2 = 0

Posted by macaronomy on June 1, 2010 at 12:43 AM via web. Be the first to answer.

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Math

Integrate f(x) = 1/(x^2 - 4)

Posted by tuleen092009 on November 15, 2010 at 1:51 AM via web. 1 educator answer.

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Math

What is the antiderivative of sin3x?

Posted by leeaeel on December 13, 2010 at 1:50 AM via web. 2 educator answers.

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Calculus

Evaluate the integral of 1/ ( 1 + 4x^2)  

Posted by wondergirl on January 27, 2011 at 11:38 AM via web. 1 educator answer.

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Math

how to calculate sin 75 and cos 75?

Posted by helga95 on September 14, 2011 at 3:30 PM via web. 1 educator answer.

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Math

Solve the equation sin x = 1+cos^2 x.

Posted by frontman0 on May 29, 2009 at 10:30 PM via web. Be the first to answer.

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Math

6-1*0+2/2=

Posted by jbillings1961 on September 3, 2012 at 12:26 AM via web. 1 educator answer.

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Math

What is the meaning of MATHEMATICS?

Posted by chrislyn09 on January 18, 2010 at 10:39 AM via web. Be the first to answer.

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Math

Prove that limit (x^2)*[sin(1/x)]=0, x->0?

Posted by magnet1qu3 on May 29, 2010 at 2:33 AM via web. Be the first to answer.

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Math

Verify the identity sinx/(1-cosx)=(1+cosx)/sinx.

Posted by uwe on June 3, 2010 at 2:23 AM via web. 1 educator answer.

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Math

Solve the equation x^2 + 3x – 4 = 0 in two ways.  

Posted by xataexa on December 2, 2010 at 2:52 AM via web. 1 educator answer.

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Math

How to solve the integral of y=1/(x-2)^1/3?

Posted by maisaphie on December 27, 2010 at 10:42 PM via web. 1 educator answer.

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Math

Verify if sin^3 x - cos^3 x = (sinx - cosx)(1 + sinxcosx)

Posted by greynose on September 29, 2010 at 12:19 AM via web. Be the first to answer.

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