Express as a function of a positive acute angle
1) tan (-50°)
2) tan 140°
Let me try the first one:
tan(-50) = sin(-50)/cos(-50) = -sin(50)/cos(50)= -tan(50)
Express 4xi+5yi^8+6xi^3+2yi^4 in simplest a+bi form
Circle O shown below has a radius of 12 centimeters. To the nearest tenth of a centimeter, determine the length of the arc, x, subtended by an angle of 83°50'
If d varies inversely as t, and d=20 when t=2, what is the value of t when d=-5?
If $5000 is invested at a rate of 3% interest compounded quartely,
Find the exact value of...
in triangle DEF, d=?3, e=5 and m<f=?/6
In triangle ABC, b=12.4, c=8.70, and m<A=23
Two lighthouses are 12 miles apart along a straight shore. A ship is 15 miles from one and 20 miles from the other. Find, the the nearest degree, the measure of the angle between the lines of sight from the ship to each lighthouse.
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