57 results for "exact".
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Question in MfEP Progress Quizzes
Question about use of trig identities, student has to use identities to find exact value of \(\sin \frac{\pi}{12}\). Question is used in exam where student has to write out the solution and upload it for grading.
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Question in MfEP Progress Quizzes
Question about use of trig identities, student has to use identities to find exact value of \(\cos \frac{7\pi}{12}\). Question is used in exam where student has to write out the solution and upload it for grading.
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Question in Engineering Statics
Student estimates, then calculates exactly and symbolically the value of $k$ for a parabola $y = k x^2$ which passes through a given point.
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Question in Trigonometry
testing sin, cos, tan of angles that are negative or greater than 2pi radians that result in nice exact values.
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Question in Trigonometry
testing sin, cos, tan of random(0,90,120,135,150,180,210,225,240,270,300,315,330) degrees but in radians
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Question in Trigonometry
multiple choice testing sin, cos, tan of angles that are negative or greater than 360 degrees that result in nice exact values.
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Question in Trigonometry
multiple choice testing sin, cos, tan of random(0,90,120,135,150,180,210,225,240,270,300,315,330) degrees
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Question in Trigonometry
multiple choice testing csc, sec, cot of random(30, 45, 60) degrees
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Exam (5 questions) in Trigonometry
Using the unit circle definition of sin, cos and tan, to calculate the exact value of trig functions evaluated at angles that depend on 0, 30, 45, 60 or 90 degrees.
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Question in Trigonometry
No description given
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Question in Algebra
Students seem to freak out when their answer is not written exactly the same as the answer provided. This question tries to enforce that $(x-y)=-(y-x)$ and $\frac{a-b}{c-d}=\frac{b-a}{d-c}$
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Question in Engineering Statics
Find the sum of two 2-dimensional vectors, graphically and exactly using the parallelogram rule.
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Question in Limites
No description given
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Question in Limites
No description given
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Question in Introduction to Calculus
Given $\rho(t)=\rho_0e^{kt}$, and values for $\rho(t)$ for $t=t_1$ and a value for $\rho_0$, find $k$. (Two examples).
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Question in Bill's workspace
Given $\rho(t)=\rho_0e^{kt}$, and values for $\rho(t)$ for $t=t_1$ and a value for $\rho_0$, find $k$. (Two examples).
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Question in Introduction to Calculus
Solve for $x$: $c(a^2)^x + d(a)^{x+1}=b$ (there is only one solution for this example).
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Question in Bill's workspace
Solve for $x$: $c(a^2)^x + d(a)^{x+1}=b$ (there is only one solution for this example).
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Question in Bill's workspace
Solve for $x$: $a\cosh(x)+b\sinh(x)=c$. There are two solutions for this example.
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Question in Bill's workspace
Rotate $y=a(\cos(x)+b)$ by $2\pi$ radians about the $x$-axis between $x=c\pi$ and $x=(c+2)\pi$. Find the volume of revolution.
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Question in All questions
Function $f(x) = xe^{ax}$ is sketched and area shaded. Question is to determine the area under graph, exactly and (calculator) to 3 s.f. Area is above x-axis.
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Question in Content created by Newcastle University
Seven standard elementary limits of sequences.
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Question in Leonardo's workspace
multiple choice testing sin, cos, tan of random(0,90,120,135,150,180,210,225,240,270,300,315,330) degrees
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Question in Trignometry
No description given
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Question in Trignometry
testing sin, cos, tan of angles that are negative or greater than 2pi radians that result in nice exact values.
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Question in Trignometry
testing sin, cos, tan of random(0,90,120,135,150,180,210,225,240,270,300,315,330) degrees but in radians
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Question in Trignometry
multiple choice testing sin, cos, tan of random(0,90,120,135,150,180,210,225,240,270,300,315,330) degrees
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Question in Trignometry
multiple choice testing sin, cos, tan of random(pi/6, pi/4, pi/3) radians
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Question in Trignometry
multiple choice testing csc, sec, cot of random(pi/6, pi/4, pi/3) radians
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Question in Trignometry
multiple choice testing csc, sec, cot of random(30, 45, 60) degrees