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Math (Trig)
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Convert the Cartesian coordinate (-1,2) to polar coordinates, 0≤θ<2π
I know r is sqrt(5) but how would I find theta between 0
4 answers
asked by
Giovanni
3,015 views
A ship leaves port at noon and has a bearing of S 25° W. The ship sails at 15 knots. How many nautical miles south and how many
3 answers
asked by
Rafael
2,441 views
I have a unit circle graph like the one at the top of a website (do a google search for 'unit circle trig functions' and click
1 answer
asked by
Chris
861 views
Solve the equation for exact values of x.
sin(x) = 1-2(sin(x))^2
1 answer
asked by
Anonymous
363 views
sorry, another I can't figure out
Show that (1-cot^2x)/(tan^2x-1)=cot^2x I started by factoring both as difference of squares.
3 answers
asked by
mtd
594 views
What does sec^2(-2) equal? Can you explain why?
3 answers
asked by
Charles
288 views
a ferris wheel has a radius of 10m and is one meter above the ground. If the ferris wheel makes 1 revolution every 20 seconds,
3 answers
asked by
Meg
1,424 views
In 1893, the city of Chicago put on a World's Fair to celebrate the 400th anniversary of Columbus' trip to the Americas. The
1 answer
asked by
Ashley
455 views
Find the indicated ratios in the triangle.
Right triangle with a height of 2.56cm length of 4.65cm and hypotenuse of 5.31cm a.
2 answers
asked by
Nj
1,009 views
Rewrite the following expression in terms of tan3x: (sin2x + sin4x)/(cos2x + cos4x)
2 answers
asked by
Josh
925 views
A triangle ABC has a trisected angle A. The angle trisectors divide side a (opposite angle A) into three segments which are BD,
2 answers
asked by
Z
648 views
A clock tower has been constructed such that the center of the clock is 40 feet above ground. The minute hand on the clock is 3
2 answers
asked by
Bree
486 views
Suppose the point A is on a circle of radius 6 with an angle of 240 degrees. Find the value of the coordinates of this point.
2 answers
asked by
Giovanni
491 views
There's a question on my homework that says:
Tan(x)=10/17. I an not sure how to solve the Tan(x) part. Am I supposed to do
2 answers
asked by
Anonymous
645 views
