16 items are filed under this topic.
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sin 2x - sin x = 0 |
2016-04-24 |
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From lilly:
sin 2x - sin x = 0 0
Answered by Penny Nom. |
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1 + cot x divided by sin x + cos x |
2015-01-15 |
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From Torrie:
I need to solve this problem in terms of Sin, but I'm having trouble.
1 + cot x divided by sin x + cos x
Answered by Robert Dawson and Penny Nom. |
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sin A/1+cos A + 1+cos A/sin A = 2cosec A |
2011-10-20 |
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From Neeraj:
sin A/1+cos A + 1+cos A/sin A = 2cosec A
Answered by Penny Nom. |
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The integral of X^3/the square root of 1-x^2 dx |
2010-03-07 |
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From William:
The integral of X^3/the square root of 1-x^2 dx.
Answered by Harley Weston. |
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A trig limit |
2009-02-05 |
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From Kathy:
Hi! I was just wondering how to do this question:
lim 1-cos2x/xsinx as x approaches 0
Thanks,
Kathy
Answered by Penny Nom. |
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Trig identities |
2009-01-05 |
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From Michael:
1) Determine if the following is an identity. If it is, prove it, If it isn't state it.
tan x + cot x = sec x * csc x
and
1 - (cos^2) x = 1+ (cot^2) x
Answered by Robert Dawson and Harley Weston. |
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The integral of dx / (4x^2 - 25)^3/2 |
2008-04-01 |
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From Meghan:
I have a question from the trigonometric substitution of my calculus course.
integral of dx / (4x^2 - 25)^3/2
Answered by Harley Weston. |
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A trig identity |
2006-03-28 |
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From Iqbal:
Could you please prove,
[tan(x)-sin(x)]/sin3(x)=sec(x)/[1+cos(x)]
Answered by Stephen La Rocque. |
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A trigonometric identity |
2006-01-22 |
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From Sarfaraz:
Prove the following trigonometric identity.
sin2x = tan2x/(1+tan2x)
Answered by Penny Nom. |
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A trigonometric identity |
2002-03-22 |
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From Debby:
I am stuck on a problem and wondering if you can help?? It is: Prove the following:
sec2(X)+csc2(X) = sec2(X)csc2(X)
Answered by Harley Weston. |
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cot(arcsin 3/5) |
2001-01-07 |
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From Jason:
Find value. Assume that all angles are in Quadrant 1. cot(arcsin 3/5)
Answered by Harley Weston. |
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Proving a trigonometric identitiy |
1999-12-17 |
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From Ryan:
I need to figure out how to prove that sec2x + csc2x = sec2x csc2x. I am not sure where to start out with it and whether I should use reciprocal, quotient, or pythagorean.
Answered by Penny Nom. |
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sin x = x/10 |
1999-10-07 |
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From Amandeep Grover:
Solve the equation sin x = x/10
Answered by Harley Weston. |
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A Trigonometry Question |
1999-08-28 |
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From Diane Simms:
My question is can the following be factored. I am a teacher who needs the factors to this right away. 2 Sin2X + 2 SinX CosX - 1= 0
Answered by Harley Weston. |
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A trig limit |
1998-11-14 |
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From Amy Atwell:
what is the limit of of tanx / x + sin x as x approaches 0
Answered by Harley Weston. |
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A Trigonometric Limit |
1997-09-18 |
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From Brian Ray:
What is the limit, as x approaches 0, or tan^23x/x^2? (read, tan squared 3x over...)?
Answered by Harley Weston. |
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