8 items are filed under this topic.
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A limit with trig functions |
2014-02-22 |
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From pearl:
(what is the value of limit of x as it approaches 0 of sin8x divided by cos6x)
Answered by Penny Nom. |
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Inverse trig functions |
2013-05-19 |
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From ky:
hello, so iv'e been asked to draw a triangle with sides of 3, 4, and 5.
And find the measure of all three angle using sin-1, cos-1, tan-1.
I got really confuse, I'm taking the SAT pretty soon and it would be great
to get this... THANX
Answered by Penny Nom. |
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The derivative of y = sin (30º + x) |
2012-11-07 |
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From Saskia:
derivative of y = sin (30º + x)
Answered by Harley Weston. |
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tanθ=1.192 |
2011-01-15 |
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From Adori:
Use a calculator to approximate two values of the θ (0 ≤θ≤2π) that satisfy the equation.
a) tanθ=1.192
I do not understand how to find the second value of θ.
Answered by Harley Weston. |
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Trig functions without geometric data |
2009-02-24 |
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From bob:
I do not understand how it is possible to find the sine, cosine, or tangent of an angle if
there is no hypotenuse, opposite or adjacent side?!
Answered by Robert Dawson. |
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Family of functions |
2007-11-12 |
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From Russell:
Consider the family of functions
f(t)= Asin3t + Acos3t +Bsin8t + Bcos8t
find exact values of parameters A and B so that f(0) = 2 and f ' (0) = 1
Answered by Stephen La Rocque. |
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Trig functions for angles not between 0 and 90 degrees |
2007-07-16 |
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From Tim:
My question: Why is the value of a trigonometric function, the same, for an angle over 90 degrees and its reference angle?
How are the angle and its reference related? Do they both form a triangle that has equal sides?
Answered by Penny Nom. |
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Finding angles |
2003-12-02 |
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From Jason:
I AM TRYING TO SOLVE A TRIG PROBLEM AND HAVE
FORGOT HOW TO DO IT. WHAT I HAVE IS A RIGHT TRIANGLE WITH SIDE A BEING 14
FEET AND SIDE B BEING 3 FEET, USING PYTHAGOREAMS THEOREM SIDE C SHOULD
EQUAL 14.318 FEET ON A RIGHT TRIANGLE BUT I AM TRYING TO REMEMBER HOW TO
FIND MY ANGLES OTHER THAN THE ONE THAT IS 90 DEGREES.
Answered by Penny Nom. |
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